Home / 6,115.40-8,439.09-3,463.66

Finding the Fourth Proportional to 6,115.40, 8,439.09 and 3,463.66

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Solution

The fourth proportional to 6,115.40, 8,439.09 and 3,463.66 is: 4,779.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.40 : 8,439.09 = 3,463.66 : x
  2. Step 2: Convert to fraction form
    6,115.40/8,439.09 = 3,463.66/x
  3. Step 3: Cross multiply
    6,115.40x = 8,439.09 × 3,463.66
  4. Step 4: Simplify right side
    6,115.40x = 29,230,136.03
  5. Step 5: Solve for x
    x = 29,230,136.03/6,115.40
  6. Step 6: Final answer
    x = 4,779.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.