Home / 5,289.12-7,932.38-2,170.01

Finding the Fourth Proportional to 5,289.12, 7,932.38 and 2,170.01

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Solution

The fourth proportional to 5,289.12, 7,932.38 and 2,170.01 is: 3,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.12 : 7,932.38 = 2,170.01 : x
  2. Step 2: Convert to fraction form
    5,289.12/7,932.38 = 2,170.01/x
  3. Step 3: Cross multiply
    5,289.12x = 7,932.38 × 2,170.01
  4. Step 4: Simplify right side
    5,289.12x = 17,213,352.90
  5. Step 5: Solve for x
    x = 17,213,352.90/5,289.12
  6. Step 6: Final answer
    x = 3,254.48

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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.