Home / 5,434.50-8,151.47-1,538.92

Finding the Fourth Proportional to 5,434.50, 8,151.47 and 1,538.92

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Solution

The fourth proportional to 5,434.50, 8,151.47 and 1,538.92 is: 2,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,434.50 : 8,151.47 = 1,538.92 : x
  2. Step 2: Convert to fraction form
    5,434.50/8,151.47 = 1,538.92/x
  3. Step 3: Cross multiply
    5,434.50x = 8,151.47 × 1,538.92
  4. Step 4: Simplify right side
    5,434.50x = 12,544,460.21
  5. Step 5: Solve for x
    x = 12,544,460.21/5,434.50
  6. Step 6: Final answer
    x = 2,308.30

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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.