Home / 5,474.80-8,218.34-2,190.18

Finding the Fourth Proportional to 5,474.80, 8,218.34 and 2,190.18

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Solution

The fourth proportional to 5,474.80, 8,218.34 and 2,190.18 is: 3,287.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.80 : 8,218.34 = 2,190.18 : x
  2. Step 2: Convert to fraction form
    5,474.80/8,218.34 = 2,190.18/x
  3. Step 3: Cross multiply
    5,474.80x = 8,218.34 × 2,190.18
  4. Step 4: Simplify right side
    5,474.80x = 17,999,612.40
  5. Step 5: Solve for x
    x = 17,999,612.40/5,474.80
  6. Step 6: Final answer
    x = 3,287.72

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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.