Home / 1,945.92-2,685.36-1,160.04

Finding the Fourth Proportional to 1,945.92, 2,685.36 and 1,160.04

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Solution

The fourth proportional to 1,945.92, 2,685.36 and 1,160.04 is: 1,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.92 : 2,685.36 = 1,160.04 : x
  2. Step 2: Convert to fraction form
    1,945.92/2,685.36 = 1,160.04/x
  3. Step 3: Cross multiply
    1,945.92x = 2,685.36 × 1,160.04
  4. Step 4: Simplify right side
    1,945.92x = 3,115,125.01
  5. Step 5: Solve for x
    x = 3,115,125.01/1,945.92
  6. Step 6: Final answer
    x = 1,600.85

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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.