Home / 4,253.38-6,380.25-1,331.62

Finding the Fourth Proportional to 4,253.38, 6,380.25 and 1,331.62

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Solution

The fourth proportional to 4,253.38, 6,380.25 and 1,331.62 is: 1,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.38 : 6,380.25 = 1,331.62 : x
  2. Step 2: Convert to fraction form
    4,253.38/6,380.25 = 1,331.62/x
  3. Step 3: Cross multiply
    4,253.38x = 6,380.25 × 1,331.62
  4. Step 4: Simplify right side
    4,253.38x = 8,496,068.51
  5. Step 5: Solve for x
    x = 8,496,068.51/4,253.38
  6. Step 6: Final answer
    x = 1,997.49

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Half scale
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Double scale
Find fourth proportional to 4,254.38, 6,381.75 and 1,332.62
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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.