Home / 1,944.18-2,680.85-1,313.61

Finding the Fourth Proportional to 1,944.18, 2,680.85 and 1,313.61

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Solution

The fourth proportional to 1,944.18, 2,680.85 and 1,313.61 is: 1,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.18 : 2,680.85 = 1,313.61 : x
  2. Step 2: Convert to fraction form
    1,944.18/2,680.85 = 1,313.61/x
  3. Step 3: Cross multiply
    1,944.18x = 2,680.85 × 1,313.61
  4. Step 4: Simplify right side
    1,944.18x = 3,521,584.80
  5. Step 5: Solve for x
    x = 3,521,584.80/1,944.18
  6. Step 6: Final answer
    x = 1,811.35

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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.