Home / 5,688.38-7,850.51-3,171.30

Finding the Fourth Proportional to 5,688.38, 7,850.51 and 3,171.30

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Solution

The fourth proportional to 5,688.38, 7,850.51 and 3,171.30 is: 4,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.38 : 7,850.51 = 3,171.30 : x
  2. Step 2: Convert to fraction form
    5,688.38/7,850.51 = 3,171.30/x
  3. Step 3: Cross multiply
    5,688.38x = 7,850.51 × 3,171.30
  4. Step 4: Simplify right side
    5,688.38x = 24,896,306.51
  5. Step 5: Solve for x
    x = 24,896,306.51/5,688.38
  6. Step 6: Final answer
    x = 4,376.70

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Half scale
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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.