Home / 1,418.44-2,127.13-493.75

Finding the Fourth Proportional to 1,418.44, 2,127.13 and 493.75

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Solution

The fourth proportional to 1,418.44, 2,127.13 and 493.75 is: 740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.44 : 2,127.13 = 493.75 : x
  2. Step 2: Convert to fraction form
    1,418.44/2,127.13 = 493.75/x
  3. Step 3: Cross multiply
    1,418.44x = 2,127.13 × 493.75
  4. Step 4: Simplify right side
    1,418.44x = 1,050,270.44
  5. Step 5: Solve for x
    x = 1,050,270.44/1,418.44
  6. Step 6: Final answer
    x = 740.44

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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.