Home / 7,649.19-11,471.58-2,102.72

Finding the Fourth Proportional to 7,649.19, 11,471.58 and 2,102.72

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Solution

The fourth proportional to 7,649.19, 11,471.58 and 2,102.72 is: 3,153.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.19 : 11,471.58 = 2,102.72 : x
  2. Step 2: Convert to fraction form
    7,649.19/11,471.58 = 2,102.72/x
  3. Step 3: Cross multiply
    7,649.19x = 11,471.58 × 2,102.72
  4. Step 4: Simplify right side
    7,649.19x = 24,121,463.34
  5. Step 5: Solve for x
    x = 24,121,463.34/7,649.19
  6. Step 6: Final answer
    x = 3,153.47

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.