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Finding the Fourth Proportional to 4,482.78, 6,724.17 and 2,142.23

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Solution

The fourth proportional to 4,482.78, 6,724.17 and 2,142.23 is: 3,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,482.78 : 6,724.17 = 2,142.23 : x
  2. Step 2: Convert to fraction form
    4,482.78/6,724.17 = 2,142.23/x
  3. Step 3: Cross multiply
    4,482.78x = 6,724.17 × 2,142.23
  4. Step 4: Simplify right side
    4,482.78x = 14,404,752.78
  5. Step 5: Solve for x
    x = 14,404,752.78/4,482.78
  6. Step 6: Final answer
    x = 3,213.35

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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.