Home / 5,311.59-7,967.10-2,191.53

Finding the Fourth Proportional to 5,311.59, 7,967.10 and 2,191.53

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Solution

The fourth proportional to 5,311.59, 7,967.10 and 2,191.53 is: 3,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.59 : 7,967.10 = 2,191.53 : x
  2. Step 2: Convert to fraction form
    5,311.59/7,967.10 = 2,191.53/x
  3. Step 3: Cross multiply
    5,311.59x = 7,967.10 × 2,191.53
  4. Step 4: Simplify right side
    5,311.59x = 17,460,138.66
  5. Step 5: Solve for x
    x = 17,460,138.66/5,311.59
  6. Step 6: Final answer
    x = 3,287.18

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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.