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Finding the Fourth Proportional to 6,362.88, 8,781.12 and 3,568.80

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Solution

The fourth proportional to 6,362.88, 8,781.12 and 3,568.80 is: 4,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,362.88 : 8,781.12 = 3,568.80 : x
  2. Step 2: Convert to fraction form
    6,362.88/8,781.12 = 3,568.80/x
  3. Step 3: Cross multiply
    6,362.88x = 8,781.12 × 3,568.80
  4. Step 4: Simplify right side
    6,362.88x = 31,338,061.06
  5. Step 5: Solve for x
    x = 31,338,061.06/6,362.88
  6. Step 6: Final answer
    x = 4,925.14

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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.