Home / 3,430.88-5,142.18-1,579.46

Finding the Fourth Proportional to 3,430.88, 5,142.18 and 1,579.46

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Solution

The fourth proportional to 3,430.88, 5,142.18 and 1,579.46 is: 2,367.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.88 : 5,142.18 = 1,579.46 : x
  2. Step 2: Convert to fraction form
    3,430.88/5,142.18 = 1,579.46/x
  3. Step 3: Cross multiply
    3,430.88x = 5,142.18 × 1,579.46
  4. Step 4: Simplify right side
    3,430.88x = 8,121,867.62
  5. Step 5: Solve for x
    x = 8,121,867.62/3,430.88
  6. Step 6: Final answer
    x = 2,367.28

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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.