Home / 2,079.17-2,869.12-1,147.69

Finding the Fourth Proportional to 2,079.17, 2,869.12 and 1,147.69

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Solution

The fourth proportional to 2,079.17, 2,869.12 and 1,147.69 is: 1,583.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.17 : 2,869.12 = 1,147.69 : x
  2. Step 2: Convert to fraction form
    2,079.17/2,869.12 = 1,147.69/x
  3. Step 3: Cross multiply
    2,079.17x = 2,869.12 × 1,147.69
  4. Step 4: Simplify right side
    2,079.17x = 3,292,860.33
  5. Step 5: Solve for x
    x = 3,292,860.33/2,079.17
  6. Step 6: Final answer
    x = 1,583.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.