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Finding the Fourth Proportional to 1,840.59, 2,761.62 and 670.67

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Solution

The fourth proportional to 1,840.59, 2,761.62 and 670.67 is: 1,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.59 : 2,761.62 = 670.67 : x
  2. Step 2: Convert to fraction form
    1,840.59/2,761.62 = 670.67/x
  3. Step 3: Cross multiply
    1,840.59x = 2,761.62 × 670.67
  4. Step 4: Simplify right side
    1,840.59x = 1,852,147.14
  5. Step 5: Solve for x
    x = 1,852,147.14/1,840.59
  6. Step 6: Final answer
    x = 1,006.28

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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.