Home / 1,419.15-2,127.27-493.95

Finding the Fourth Proportional to 1,419.15, 2,127.27 and 493.95

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Solution

The fourth proportional to 1,419.15, 2,127.27 and 493.95 is: 740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.15 : 2,127.27 = 493.95 : x
  2. Step 2: Convert to fraction form
    1,419.15/2,127.27 = 493.95/x
  3. Step 3: Cross multiply
    1,419.15x = 2,127.27 × 493.95
  4. Step 4: Simplify right side
    1,419.15x = 1,050,765.02
  5. Step 5: Solve for x
    x = 1,050,765.02/1,419.15
  6. Step 6: Final answer
    x = 740.42

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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.