Home / 3,167.24-4,372.35-1,988.96

Finding the Fourth Proportional to 3,167.24, 4,372.35 and 1,988.96

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Solution

The fourth proportional to 3,167.24, 4,372.35 and 1,988.96 is: 2,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.24 : 4,372.35 = 1,988.96 : x
  2. Step 2: Convert to fraction form
    3,167.24/4,372.35 = 1,988.96/x
  3. Step 3: Cross multiply
    3,167.24x = 4,372.35 × 1,988.96
  4. Step 4: Simplify right side
    3,167.24x = 8,696,429.26
  5. Step 5: Solve for x
    x = 8,696,429.26/3,167.24
  6. Step 6: Final answer
    x = 2,745.74

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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.