Home / 5,190.50-7,162.98-2,832.70

Finding the Fourth Proportional to 5,190.50, 7,162.98 and 2,832.70

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Solution

The fourth proportional to 5,190.50, 7,162.98 and 2,832.70 is: 3,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.50 : 7,162.98 = 2,832.70 : x
  2. Step 2: Convert to fraction form
    5,190.50/7,162.98 = 2,832.70/x
  3. Step 3: Cross multiply
    5,190.50x = 7,162.98 × 2,832.70
  4. Step 4: Simplify right side
    5,190.50x = 20,290,573.45
  5. Step 5: Solve for x
    x = 20,290,573.45/5,190.50
  6. Step 6: Final answer
    x = 3,909.18

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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.