Home / 7,454.87-11,182.30-1,908.20

Finding the Fourth Proportional to 7,454.87, 11,182.30 and 1,908.20

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Solution

The fourth proportional to 7,454.87, 11,182.30 and 1,908.20 is: 2,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.87 : 11,182.30 = 1,908.20 : x
  2. Step 2: Convert to fraction form
    7,454.87/11,182.30 = 1,908.20/x
  3. Step 3: Cross multiply
    7,454.87x = 11,182.30 × 1,908.20
  4. Step 4: Simplify right side
    7,454.87x = 21,338,102.54
  5. Step 5: Solve for x
    x = 21,338,102.54/7,454.87
  6. Step 6: Final answer
    x = 2,862.30

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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.