Home / 3,489.12-5,230.44-1,296.24

Finding the Fourth Proportional to 3,489.12, 5,230.44 and 1,296.24

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Solution

The fourth proportional to 3,489.12, 5,230.44 and 1,296.24 is: 1,943.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.12 : 5,230.44 = 1,296.24 : x
  2. Step 2: Convert to fraction form
    3,489.12/5,230.44 = 1,296.24/x
  3. Step 3: Cross multiply
    3,489.12x = 5,230.44 × 1,296.24
  4. Step 4: Simplify right side
    3,489.12x = 6,779,905.55
  5. Step 5: Solve for x
    x = 6,779,905.55/3,489.12
  6. Step 6: Final answer
    x = 1,943.16

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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.