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Finding the Fourth Proportional to 1,566.24, 2,349.36 and 641.14

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Solution

The fourth proportional to 1,566.24, 2,349.36 and 641.14 is: 961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.24 : 2,349.36 = 641.14 : x
  2. Step 2: Convert to fraction form
    1,566.24/2,349.36 = 641.14/x
  3. Step 3: Cross multiply
    1,566.24x = 2,349.36 × 641.14
  4. Step 4: Simplify right side
    1,566.24x = 1,506,268.67
  5. Step 5: Solve for x
    x = 1,506,268.67/1,566.24
  6. Step 6: Final answer
    x = 961.71

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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.