Home / 2,139.14-2,951.17-1,299.53

Finding the Fourth Proportional to 2,139.14, 2,951.17 and 1,299.53

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Solution

The fourth proportional to 2,139.14, 2,951.17 and 1,299.53 is: 1,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139.14 : 2,951.17 = 1,299.53 : x
  2. Step 2: Convert to fraction form
    2,139.14/2,951.17 = 1,299.53/x
  3. Step 3: Cross multiply
    2,139.14x = 2,951.17 × 1,299.53
  4. Step 4: Simplify right side
    2,139.14x = 3,835,138.08
  5. Step 5: Solve for x
    x = 3,835,138.08/2,139.14
  6. Step 6: Final answer
    x = 1,792.84

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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.