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Finding the Fourth Proportional to 691.68, 953.52 and 587.04

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Solution

The fourth proportional to 691.68, 953.52 and 587.04 is: 809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.68 : 953.52 = 587.04 : x
  2. Step 2: Convert to fraction form
    691.68/953.52 = 587.04/x
  3. Step 3: Cross multiply
    691.68x = 953.52 × 587.04
  4. Step 4: Simplify right side
    691.68x = 559,754.38
  5. Step 5: Solve for x
    x = 559,754.38/691.68
  6. Step 6: Final answer
    x = 809.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.