Home / 7,158.62-9,872.42-4,638.18

Finding the Fourth Proportional to 7,158.62, 9,872.42 and 4,638.18

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Solution

The fourth proportional to 7,158.62, 9,872.42 and 4,638.18 is: 6,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.62 : 9,872.42 = 4,638.18 : x
  2. Step 2: Convert to fraction form
    7,158.62/9,872.42 = 4,638.18/x
  3. Step 3: Cross multiply
    7,158.62x = 9,872.42 × 4,638.18
  4. Step 4: Simplify right side
    7,158.62x = 45,790,061.00
  5. Step 5: Solve for x
    x = 45,790,061.00/7,158.62
  6. Step 6: Final answer
    x = 6,396.49

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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.