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Finding the Fourth Proportional to 2,878.91, 4,318.11 and 1,752.88

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Solution

The fourth proportional to 2,878.91, 4,318.11 and 1,752.88 is: 2,629.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.91 : 4,318.11 = 1,752.88 : x
  2. Step 2: Convert to fraction form
    2,878.91/4,318.11 = 1,752.88/x
  3. Step 3: Cross multiply
    2,878.91x = 4,318.11 × 1,752.88
  4. Step 4: Simplify right side
    2,878.91x = 7,569,115.42
  5. Step 5: Solve for x
    x = 7,569,115.42/2,878.91
  6. Step 6: Final answer
    x = 2,629.16

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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.