Home / 5,553.60-8,330.40-3,698.70

Finding the Fourth Proportional to 5,553.60, 8,330.40 and 3,698.70

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Solution

The fourth proportional to 5,553.60, 8,330.40 and 3,698.70 is: 5,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.60 : 8,330.40 = 3,698.70 : x
  2. Step 2: Convert to fraction form
    5,553.60/8,330.40 = 3,698.70/x
  3. Step 3: Cross multiply
    5,553.60x = 8,330.40 × 3,698.70
  4. Step 4: Simplify right side
    5,553.60x = 30,811,650.48
  5. Step 5: Solve for x
    x = 30,811,650.48/5,553.60
  6. Step 6: Final answer
    x = 5,548.05

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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.