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Finding the Fourth Proportional to 1,809.23, 2,713.85 and 577.67

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Solution

The fourth proportional to 1,809.23, 2,713.85 and 577.67 is: 866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.23 : 2,713.85 = 577.67 : x
  2. Step 2: Convert to fraction form
    1,809.23/2,713.85 = 577.67/x
  3. Step 3: Cross multiply
    1,809.23x = 2,713.85 × 577.67
  4. Step 4: Simplify right side
    1,809.23x = 1,567,693.27
  5. Step 5: Solve for x
    x = 1,567,693.27/1,809.23
  6. Step 6: Final answer
    x = 866.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,810.23, 2,715.35 and 578.67
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.