Home / 1,251.77-1,734.75-1,234.15

Finding the Fourth Proportional to 1,251.77, 1,734.75 and 1,234.15

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Solution

The fourth proportional to 1,251.77, 1,734.75 and 1,234.15 is: 1,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.77 : 1,734.75 = 1,234.15 : x
  2. Step 2: Convert to fraction form
    1,251.77/1,734.75 = 1,234.15/x
  3. Step 3: Cross multiply
    1,251.77x = 1,734.75 × 1,234.15
  4. Step 4: Simplify right side
    1,251.77x = 2,140,937.38
  5. Step 5: Solve for x
    x = 2,140,937.38/1,251.77
  6. Step 6: Final answer
    x = 1,710.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.