Home / 4,079.13-6,119.14-1,305.15

Finding the Fourth Proportional to 4,079.13, 6,119.14 and 1,305.15

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Solution

The fourth proportional to 4,079.13, 6,119.14 and 1,305.15 is: 1,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.13 : 6,119.14 = 1,305.15 : x
  2. Step 2: Convert to fraction form
    4,079.13/6,119.14 = 1,305.15/x
  3. Step 3: Cross multiply
    4,079.13x = 6,119.14 × 1,305.15
  4. Step 4: Simplify right side
    4,079.13x = 7,986,395.57
  5. Step 5: Solve for x
    x = 7,986,395.57/4,079.13
  6. Step 6: Final answer
    x = 1,957.87

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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.