Home / 5,475.98-8,220.12-2,191.37

Finding the Fourth Proportional to 5,475.98, 8,220.12 and 2,191.37

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Solution

The fourth proportional to 5,475.98, 8,220.12 and 2,191.37 is: 3,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.98 : 8,220.12 = 2,191.37 : x
  2. Step 2: Convert to fraction form
    5,475.98/8,220.12 = 2,191.37/x
  3. Step 3: Cross multiply
    5,475.98x = 8,220.12 × 2,191.37
  4. Step 4: Simplify right side
    5,475.98x = 18,013,283.26
  5. Step 5: Solve for x
    x = 18,013,283.26/5,475.98
  6. Step 6: Final answer
    x = 3,289.51

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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.