Home / 5,554.10-8,331.15-5,131.70

Finding the Fourth Proportional to 5,554.10, 8,331.15 and 5,131.70

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Solution

The fourth proportional to 5,554.10, 8,331.15 and 5,131.70 is: 7,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.10 : 8,331.15 = 5,131.70 : x
  2. Step 2: Convert to fraction form
    5,554.10/8,331.15 = 5,131.70/x
  3. Step 3: Cross multiply
    5,554.10x = 8,331.15 × 5,131.70
  4. Step 4: Simplify right side
    5,554.10x = 42,752,962.46
  5. Step 5: Solve for x
    x = 42,752,962.46/5,554.10
  6. Step 6: Final answer
    x = 7,697.55

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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.