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Finding the Fourth Proportional to 2,717.99, 4,079.02 and 1,258.17

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Solution

The fourth proportional to 2,717.99, 4,079.02 and 1,258.17 is: 1,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.99 : 4,079.02 = 1,258.17 : x
  2. Step 2: Convert to fraction form
    2,717.99/4,079.02 = 1,258.17/x
  3. Step 3: Cross multiply
    2,717.99x = 4,079.02 × 1,258.17
  4. Step 4: Simplify right side
    2,717.99x = 5,132,100.59
  5. Step 5: Solve for x
    x = 5,132,100.59/2,717.99
  6. Step 6: Final answer
    x = 1,888.20

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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.