Home / 3,437.18-5,155.76-1,245.90

Finding the Fourth Proportional to 3,437.18, 5,155.76 and 1,245.90

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Solution

The fourth proportional to 3,437.18, 5,155.76 and 1,245.90 is: 1,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.18 : 5,155.76 = 1,245.90 : x
  2. Step 2: Convert to fraction form
    3,437.18/5,155.76 = 1,245.90/x
  3. Step 3: Cross multiply
    3,437.18x = 5,155.76 × 1,245.90
  4. Step 4: Simplify right side
    3,437.18x = 6,423,558.27
  5. Step 5: Solve for x
    x = 6,423,558.27/3,437.18
  6. Step 6: Final answer
    x = 1,868.85

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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.