Home / 1,945.92-2,685.38-1,159.95

Finding the Fourth Proportional to 1,945.92, 2,685.38 and 1,159.95

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Solution

The fourth proportional to 1,945.92, 2,685.38 and 1,159.95 is: 1,600.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.92 : 2,685.38 = 1,159.95 : x
  2. Step 2: Convert to fraction form
    1,945.92/2,685.38 = 1,159.95/x
  3. Step 3: Cross multiply
    1,945.92x = 2,685.38 × 1,159.95
  4. Step 4: Simplify right side
    1,945.92x = 3,114,900.73
  5. Step 5: Solve for x
    x = 3,114,900.73/1,945.92
  6. Step 6: Final answer
    x = 1,600.73

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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.