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Finding the Fourth Proportional to 2,086.99, 3,130.95 and 606.24

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Solution

The fourth proportional to 2,086.99, 3,130.95 and 606.24 is: 909.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.99 : 3,130.95 = 606.24 : x
  2. Step 2: Convert to fraction form
    2,086.99/3,130.95 = 606.24/x
  3. Step 3: Cross multiply
    2,086.99x = 3,130.95 × 606.24
  4. Step 4: Simplify right side
    2,086.99x = 1,898,088.44
  5. Step 5: Solve for x
    x = 1,898,088.44/2,086.99
  6. Step 6: Final answer
    x = 909.49

Related Problems

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Half scale
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Double scale
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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.