Home / 1,224.18-1,836.90-493.92

Finding the Fourth Proportional to 1,224.18, 1,836.90 and 493.92

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Solution

The fourth proportional to 1,224.18, 1,836.90 and 493.92 is: 741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.18 : 1,836.90 = 493.92 : x
  2. Step 2: Convert to fraction form
    1,224.18/1,836.90 = 493.92/x
  3. Step 3: Cross multiply
    1,224.18x = 1,836.90 × 493.92
  4. Step 4: Simplify right side
    1,224.18x = 907,281.65
  5. Step 5: Solve for x
    x = 907,281.65/1,224.18
  6. Step 6: Final answer
    x = 741.13

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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.