Home / 2,079.81-3,115.17-1,613.95

Finding the Fourth Proportional to 2,079.81, 3,115.17 and 1,613.95

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Solution

The fourth proportional to 2,079.81, 3,115.17 and 1,613.95 is: 2,417.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.81 : 3,115.17 = 1,613.95 : x
  2. Step 2: Convert to fraction form
    2,079.81/3,115.17 = 1,613.95/x
  3. Step 3: Cross multiply
    2,079.81x = 3,115.17 × 1,613.95
  4. Step 4: Simplify right side
    2,079.81x = 5,027,720.83
  5. Step 5: Solve for x
    x = 5,027,720.83/2,079.81
  6. Step 6: Final answer
    x = 2,417.39

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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.