Home / 1,450.20-2,000.79-926.55

Finding the Fourth Proportional to 1,450.20, 2,000.79 and 926.55

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Solution

The fourth proportional to 1,450.20, 2,000.79 and 926.55 is: 1,278.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.20 : 2,000.79 = 926.55 : x
  2. Step 2: Convert to fraction form
    1,450.20/2,000.79 = 926.55/x
  3. Step 3: Cross multiply
    1,450.20x = 2,000.79 × 926.55
  4. Step 4: Simplify right side
    1,450.20x = 1,853,831.97
  5. Step 5: Solve for x
    x = 1,853,831.97/1,450.20
  6. Step 6: Final answer
    x = 1,278.33

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1.5x scale

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.