Home / 1,712.70-2,363.52-926.75

Finding the Fourth Proportional to 1,712.70, 2,363.52 and 926.75

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Solution

The fourth proportional to 1,712.70, 2,363.52 and 926.75 is: 1,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.70 : 2,363.52 = 926.75 : x
  2. Step 2: Convert to fraction form
    1,712.70/2,363.52 = 926.75/x
  3. Step 3: Cross multiply
    1,712.70x = 2,363.52 × 926.75
  4. Step 4: Simplify right side
    1,712.70x = 2,190,380.34
  5. Step 5: Solve for x
    x = 2,190,380.34/1,712.70
  6. Step 6: Final answer
    x = 1,278.90

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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.