Home / 5,490.50-8,236.08-1,793.12

Finding the Fourth Proportional to 5,490.50, 8,236.08 and 1,793.12

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Solution

The fourth proportional to 5,490.50, 8,236.08 and 1,793.12 is: 2,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.50 : 8,236.08 = 1,793.12 : x
  2. Step 2: Convert to fraction form
    5,490.50/8,236.08 = 1,793.12/x
  3. Step 3: Cross multiply
    5,490.50x = 8,236.08 × 1,793.12
  4. Step 4: Simplify right side
    5,490.50x = 14,768,238.59
  5. Step 5: Solve for x
    x = 14,768,238.59/5,490.50
  6. Step 6: Final answer
    x = 2,689.78

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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.