Home / 2,715.95-4,073.92-1,419.95

Finding the Fourth Proportional to 2,715.95, 4,073.92 and 1,419.95

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Solution

The fourth proportional to 2,715.95, 4,073.92 and 1,419.95 is: 2,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.95 : 4,073.92 = 1,419.95 : x
  2. Step 2: Convert to fraction form
    2,715.95/4,073.92 = 1,419.95/x
  3. Step 3: Cross multiply
    2,715.95x = 4,073.92 × 1,419.95
  4. Step 4: Simplify right side
    2,715.95x = 5,784,738.78
  5. Step 5: Solve for x
    x = 5,784,738.78/2,715.95
  6. Step 6: Final answer
    x = 2,129.92

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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.