Home / 2,331.38-3,497.07-688.05

Finding the Fourth Proportional to 2,331.38, 3,497.07 and 688.05

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Solution

The fourth proportional to 2,331.38, 3,497.07 and 688.05 is: 1,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.38 : 3,497.07 = 688.05 : x
  2. Step 2: Convert to fraction form
    2,331.38/3,497.07 = 688.05/x
  3. Step 3: Cross multiply
    2,331.38x = 3,497.07 × 688.05
  4. Step 4: Simplify right side
    2,331.38x = 2,406,159.01
  5. Step 5: Solve for x
    x = 2,406,159.01/2,331.38
  6. Step 6: Final answer
    x = 1,032.08

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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.