Home / 5,490.12-8,232.60-4,947.36

Finding the Fourth Proportional to 5,490.12, 8,232.60 and 4,947.36

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Solution

The fourth proportional to 5,490.12, 8,232.60 and 4,947.36 is: 7,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.12 : 8,232.60 = 4,947.36 : x
  2. Step 2: Convert to fraction form
    5,490.12/8,232.60 = 4,947.36/x
  3. Step 3: Cross multiply
    5,490.12x = 8,232.60 × 4,947.36
  4. Step 4: Simplify right side
    5,490.12x = 40,729,635.94
  5. Step 5: Solve for x
    x = 40,729,635.94/5,490.12
  6. Step 6: Final answer
    x = 7,418.72

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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.