Home / 2,126.76-2,932.54-1,379.73

Finding the Fourth Proportional to 2,126.76, 2,932.54 and 1,379.73

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Solution

The fourth proportional to 2,126.76, 2,932.54 and 1,379.73 is: 1,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.76 : 2,932.54 = 1,379.73 : x
  2. Step 2: Convert to fraction form
    2,126.76/2,932.54 = 1,379.73/x
  3. Step 3: Cross multiply
    2,126.76x = 2,932.54 × 1,379.73
  4. Step 4: Simplify right side
    2,126.76x = 4,046,113.41
  5. Step 5: Solve for x
    x = 4,046,113.41/2,126.76
  6. Step 6: Final answer
    x = 1,902.48

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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.