Home / 5,079.97-7,620.45-1,792.90

Finding the Fourth Proportional to 5,079.97, 7,620.45 and 1,792.90

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Solution

The fourth proportional to 5,079.97, 7,620.45 and 1,792.90 is: 2,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.97 : 7,620.45 = 1,792.90 : x
  2. Step 2: Convert to fraction form
    5,079.97/7,620.45 = 1,792.90/x
  3. Step 3: Cross multiply
    5,079.97x = 7,620.45 × 1,792.90
  4. Step 4: Simplify right side
    5,079.97x = 13,662,704.81
  5. Step 5: Solve for x
    x = 13,662,704.81/5,079.97
  6. Step 6: Final answer
    x = 2,689.52

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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.