Home / 2,223.28-3,332.60-761.92

Finding the Fourth Proportional to 2,223.28, 3,332.60 and 761.92

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Solution

The fourth proportional to 2,223.28, 3,332.60 and 761.92 is: 1,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.28 : 3,332.60 = 761.92 : x
  2. Step 2: Convert to fraction form
    2,223.28/3,332.60 = 761.92/x
  3. Step 3: Cross multiply
    2,223.28x = 3,332.60 × 761.92
  4. Step 4: Simplify right side
    2,223.28x = 2,539,174.59
  5. Step 5: Solve for x
    x = 2,539,174.59/2,223.28
  6. Step 6: Final answer
    x = 1,142.08

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1.5x scale

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.