Home / 6,439.23-9,658.85-3,515.94

Finding the Fourth Proportional to 6,439.23, 9,658.85 and 3,515.94

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Solution

The fourth proportional to 6,439.23, 9,658.85 and 3,515.94 is: 5,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.23 : 9,658.85 = 3,515.94 : x
  2. Step 2: Convert to fraction form
    6,439.23/9,658.85 = 3,515.94/x
  3. Step 3: Cross multiply
    6,439.23x = 9,658.85 × 3,515.94
  4. Step 4: Simplify right side
    6,439.23x = 33,959,919.49
  5. Step 5: Solve for x
    x = 33,959,919.49/6,439.23
  6. Step 6: Final answer
    x = 5,273.91

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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.