Home / 5,213.38-7,186.95-3,718.69

Finding the Fourth Proportional to 5,213.38, 7,186.95 and 3,718.69

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Solution

The fourth proportional to 5,213.38, 7,186.95 and 3,718.69 is: 5,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.38 : 7,186.95 = 3,718.69 : x
  2. Step 2: Convert to fraction form
    5,213.38/7,186.95 = 3,718.69/x
  3. Step 3: Cross multiply
    5,213.38x = 7,186.95 × 3,718.69
  4. Step 4: Simplify right side
    5,213.38x = 26,726,039.10
  5. Step 5: Solve for x
    x = 26,726,039.10/5,213.38
  6. Step 6: Final answer
    x = 5,126.43

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Half scale
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Double 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.