Home / 5,382.01-7,427.12-2,991.92

Finding the Fourth Proportional to 5,382.01, 7,427.12 and 2,991.92

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Solution

The fourth proportional to 5,382.01, 7,427.12 and 2,991.92 is: 4,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.01 : 7,427.12 = 2,991.92 : x
  2. Step 2: Convert to fraction form
    5,382.01/7,427.12 = 2,991.92/x
  3. Step 3: Cross multiply
    5,382.01x = 7,427.12 × 2,991.92
  4. Step 4: Simplify right side
    5,382.01x = 22,221,348.87
  5. Step 5: Solve for x
    x = 22,221,348.87/5,382.01
  6. Step 6: Final answer
    x = 4,128.82

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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.