Home / 5,167.36-7,131.30-3,150.40

Finding the Fourth Proportional to 5,167.36, 7,131.30 and 3,150.40

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Solution

The fourth proportional to 5,167.36, 7,131.30 and 3,150.40 is: 4,347.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.36 : 7,131.30 = 3,150.40 : x
  2. Step 2: Convert to fraction form
    5,167.36/7,131.30 = 3,150.40/x
  3. Step 3: Cross multiply
    5,167.36x = 7,131.30 × 3,150.40
  4. Step 4: Simplify right side
    5,167.36x = 22,466,447.52
  5. Step 5: Solve for x
    x = 22,466,447.52/5,167.36
  6. Step 6: Final answer
    x = 4,347.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.