Home / 6,439.18-9,654.21-3,317.85

Finding the Fourth Proportional to 6,439.18, 9,654.21 and 3,317.85

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Solution

The fourth proportional to 6,439.18, 9,654.21 and 3,317.85 is: 4,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.18 : 9,654.21 = 3,317.85 : x
  2. Step 2: Convert to fraction form
    6,439.18/9,654.21 = 3,317.85/x
  3. Step 3: Cross multiply
    6,439.18x = 9,654.21 × 3,317.85
  4. Step 4: Simplify right side
    6,439.18x = 32,031,220.65
  5. Step 5: Solve for x
    x = 32,031,220.65/6,439.18
  6. Step 6: Final answer
    x = 4,974.43

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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.