Home / 5,604.12-8,398.62-2,139.48

Finding the Fourth Proportional to 5,604.12, 8,398.62 and 2,139.48

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Solution

The fourth proportional to 5,604.12, 8,398.62 and 2,139.48 is: 3,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,604.12 : 8,398.62 = 2,139.48 : x
  2. Step 2: Convert to fraction form
    5,604.12/8,398.62 = 2,139.48/x
  3. Step 3: Cross multiply
    5,604.12x = 8,398.62 × 2,139.48
  4. Step 4: Simplify right side
    5,604.12x = 17,968,679.52
  5. Step 5: Solve for x
    x = 17,968,679.52/5,604.12
  6. Step 6: Final answer
    x = 3,206.33

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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.