Home / 3,167.34-4,371.12-1,988.82

Finding the Fourth Proportional to 3,167.34, 4,371.12 and 1,988.82

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Solution

The fourth proportional to 3,167.34, 4,371.12 and 1,988.82 is: 2,744.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.34 : 4,371.12 = 1,988.82 : x
  2. Step 2: Convert to fraction form
    3,167.34/4,371.12 = 1,988.82/x
  3. Step 3: Cross multiply
    3,167.34x = 4,371.12 × 1,988.82
  4. Step 4: Simplify right side
    3,167.34x = 8,693,370.88
  5. Step 5: Solve for x
    x = 8,693,370.88/3,167.34
  6. Step 6: Final answer
    x = 2,744.69

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1.5x scale

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.