Home / 1,332.25-1,838.36-742.84

Finding the Fourth Proportional to 1,332.25, 1,838.36 and 742.84

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Solution

The fourth proportional to 1,332.25, 1,838.36 and 742.84 is: 1,025.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.25 : 1,838.36 = 742.84 : x
  2. Step 2: Convert to fraction form
    1,332.25/1,838.36 = 742.84/x
  3. Step 3: Cross multiply
    1,332.25x = 1,838.36 × 742.84
  4. Step 4: Simplify right side
    1,332.25x = 1,365,604.60
  5. Step 5: Solve for x
    x = 1,365,604.60/1,332.25
  6. Step 6: Final answer
    x = 1,025.04

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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.