Home / 5,323.52-7,986.20-3,131.06

Finding the Fourth Proportional to 5,323.52, 7,986.20 and 3,131.06

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Solution

The fourth proportional to 5,323.52, 7,986.20 and 3,131.06 is: 4,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.52 : 7,986.20 = 3,131.06 : x
  2. Step 2: Convert to fraction form
    5,323.52/7,986.20 = 3,131.06/x
  3. Step 3: Cross multiply
    5,323.52x = 7,986.20 × 3,131.06
  4. Step 4: Simplify right side
    5,323.52x = 25,005,215.79
  5. Step 5: Solve for x
    x = 25,005,215.79/5,323.52
  6. Step 6: Final answer
    x = 4,697.12

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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.