Home / 5,079.15-7,617.83-1,380.92

Finding the Fourth Proportional to 5,079.15, 7,617.83 and 1,380.92

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Solution

The fourth proportional to 5,079.15, 7,617.83 and 1,380.92 is: 2,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.15 : 7,617.83 = 1,380.92 : x
  2. Step 2: Convert to fraction form
    5,079.15/7,617.83 = 1,380.92/x
  3. Step 3: Cross multiply
    5,079.15x = 7,617.83 × 1,380.92
  4. Step 4: Simplify right side
    5,079.15x = 10,519,568.81
  5. Step 5: Solve for x
    x = 10,519,568.81/5,079.15
  6. Step 6: Final answer
    x = 2,071.13

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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.