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Finding the Fourth Proportional to 7,002.78, 9,660.43 and 4,482.87

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Solution

The fourth proportional to 7,002.78, 9,660.43 and 4,482.87 is: 6,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.78 : 9,660.43 = 4,482.87 : x
  2. Step 2: Convert to fraction form
    7,002.78/9,660.43 = 4,482.87/x
  3. Step 3: Cross multiply
    7,002.78x = 9,660.43 × 4,482.87
  4. Step 4: Simplify right side
    7,002.78x = 43,306,451.83
  5. Step 5: Solve for x
    x = 43,306,451.83/7,002.78
  6. Step 6: Final answer
    x = 6,184.18

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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.