Home / 5,191.88-7,167.74-3,428.60

Finding the Fourth Proportional to 5,191.88, 7,167.74 and 3,428.60

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Solution

The fourth proportional to 5,191.88, 7,167.74 and 3,428.60 is: 4,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.88 : 7,167.74 = 3,428.60 : x
  2. Step 2: Convert to fraction form
    5,191.88/7,167.74 = 3,428.60/x
  3. Step 3: Cross multiply
    5,191.88x = 7,167.74 × 3,428.60
  4. Step 4: Simplify right side
    5,191.88x = 24,575,260.38
  5. Step 5: Solve for x
    x = 24,575,260.38/5,191.88
  6. Step 6: Final answer
    x = 4,733.41

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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.