Home / 3,872.16-5,345.79-2,549.70

Finding the Fourth Proportional to 3,872.16, 5,345.79 and 2,549.70

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Solution

The fourth proportional to 3,872.16, 5,345.79 and 2,549.70 is: 3,520.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.16 : 5,345.79 = 2,549.70 : x
  2. Step 2: Convert to fraction form
    3,872.16/5,345.79 = 2,549.70/x
  3. Step 3: Cross multiply
    3,872.16x = 5,345.79 × 2,549.70
  4. Step 4: Simplify right side
    3,872.16x = 13,630,160.76
  5. Step 5: Solve for x
    x = 13,630,160.76/3,872.16
  6. Step 6: Final answer
    x = 3,520.04

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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.