Home / 1,332.04-1,838.20-742.62

Finding the Fourth Proportional to 1,332.04, 1,838.20 and 742.62

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Solution

The fourth proportional to 1,332.04, 1,838.20 and 742.62 is: 1,024.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.04 : 1,838.20 = 742.62 : x
  2. Step 2: Convert to fraction form
    1,332.04/1,838.20 = 742.62/x
  3. Step 3: Cross multiply
    1,332.04x = 1,838.20 × 742.62
  4. Step 4: Simplify right side
    1,332.04x = 1,365,084.08
  5. Step 5: Solve for x
    x = 1,365,084.08/1,332.04
  6. Step 6: Final answer
    x = 1,024.81

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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.