Home / 7,715.28-10,649.52-4,572.48

Finding the Fourth Proportional to 7,715.28, 10,649.52 and 4,572.48

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Solution

The fourth proportional to 7,715.28, 10,649.52 and 4,572.48 is: 6,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.28 : 10,649.52 = 4,572.48 : x
  2. Step 2: Convert to fraction form
    7,715.28/10,649.52 = 4,572.48/x
  3. Step 3: Cross multiply
    7,715.28x = 10,649.52 × 4,572.48
  4. Step 4: Simplify right side
    7,715.28x = 48,694,717.21
  5. Step 5: Solve for x
    x = 48,694,717.21/7,715.28
  6. Step 6: Final answer
    x = 6,311.46

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Half scale
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Double scale
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Similar ratio
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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.