Home / 5,079.64-7,620.62-2,158.04

Finding the Fourth Proportional to 5,079.64, 7,620.62 and 2,158.04

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Solution

The fourth proportional to 5,079.64, 7,620.62 and 2,158.04 is: 3,237.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.64 : 7,620.62 = 2,158.04 : x
  2. Step 2: Convert to fraction form
    5,079.64/7,620.62 = 2,158.04/x
  3. Step 3: Cross multiply
    5,079.64x = 7,620.62 × 2,158.04
  4. Step 4: Simplify right side
    5,079.64x = 16,445,602.78
  5. Step 5: Solve for x
    x = 16,445,602.78/5,079.64
  6. Step 6: Final answer
    x = 3,237.55

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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.