Home / 1,625.52-2,243.26-926.90

Finding the Fourth Proportional to 1,625.52, 2,243.26 and 926.90

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Solution

The fourth proportional to 1,625.52, 2,243.26 and 926.90 is: 1,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.52 : 2,243.26 = 926.90 : x
  2. Step 2: Convert to fraction form
    1,625.52/2,243.26 = 926.90/x
  3. Step 3: Cross multiply
    1,625.52x = 2,243.26 × 926.90
  4. Step 4: Simplify right side
    1,625.52x = 2,079,277.69
  5. Step 5: Solve for x
    x = 2,079,277.69/1,625.52
  6. Step 6: Final answer
    x = 1,279.15

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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.