Home / 3,125.92-4,685.52-1,178.08

Finding the Fourth Proportional to 3,125.92, 4,685.52 and 1,178.08

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Solution

The fourth proportional to 3,125.92, 4,685.52 and 1,178.08 is: 1,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.92 : 4,685.52 = 1,178.08 : x
  2. Step 2: Convert to fraction form
    3,125.92/4,685.52 = 1,178.08/x
  3. Step 3: Cross multiply
    3,125.92x = 4,685.52 × 1,178.08
  4. Step 4: Simplify right side
    3,125.92x = 5,519,917.40
  5. Step 5: Solve for x
    x = 5,519,917.40/3,125.92
  6. Step 6: Final answer
    x = 1,765.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.