Home / 3,191.30-4,774.92-2,867.57

Finding the Fourth Proportional to 3,191.30, 4,774.92 and 2,867.57

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Solution

The fourth proportional to 3,191.30, 4,774.92 and 2,867.57 is: 4,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.30 : 4,774.92 = 2,867.57 : x
  2. Step 2: Convert to fraction form
    3,191.30/4,774.92 = 2,867.57/x
  3. Step 3: Cross multiply
    3,191.30x = 4,774.92 × 2,867.57
  4. Step 4: Simplify right side
    3,191.30x = 13,692,417.34
  5. Step 5: Solve for x
    x = 13,692,417.34/3,191.30
  6. Step 6: Final answer
    x = 4,290.55

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1.5x scale

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.