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Finding the Fourth Proportional to 6,626.88, 9,938.40 and 2,521.92

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Solution

The fourth proportional to 6,626.88, 9,938.40 and 2,521.92 is: 3,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.88 : 9,938.40 = 2,521.92 : x
  2. Step 2: Convert to fraction form
    6,626.88/9,938.40 = 2,521.92/x
  3. Step 3: Cross multiply
    6,626.88x = 9,938.40 × 2,521.92
  4. Step 4: Simplify right side
    6,626.88x = 25,063,849.73
  5. Step 5: Solve for x
    x = 25,063,849.73/6,626.88
  6. Step 6: Final answer
    x = 3,782.15

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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.