Home / 1,921.46-2,650.92-1,134.95

Finding the Fourth Proportional to 1,921.46, 2,650.92 and 1,134.95

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Solution

The fourth proportional to 1,921.46, 2,650.92 and 1,134.95 is: 1,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.46 : 2,650.92 = 1,134.95 : x
  2. Step 2: Convert to fraction form
    1,921.46/2,650.92 = 1,134.95/x
  3. Step 3: Cross multiply
    1,921.46x = 2,650.92 × 1,134.95
  4. Step 4: Simplify right side
    1,921.46x = 3,008,648.40
  5. Step 5: Solve for x
    x = 3,008,648.40/1,921.46
  6. Step 6: Final answer
    x = 1,565.82

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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.