Home / 3,715.14-5,128.48-2,456.76

Finding the Fourth Proportional to 3,715.14, 5,128.48 and 2,456.76

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Solution

The fourth proportional to 3,715.14, 5,128.48 and 2,456.76 is: 3,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.14 : 5,128.48 = 2,456.76 : x
  2. Step 2: Convert to fraction form
    3,715.14/5,128.48 = 2,456.76/x
  3. Step 3: Cross multiply
    3,715.14x = 5,128.48 × 2,456.76
  4. Step 4: Simplify right side
    3,715.14x = 12,599,444.52
  5. Step 5: Solve for x
    x = 12,599,444.52/3,715.14
  6. Step 6: Final answer
    x = 3,391.38

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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.