Home / 5,318.22-7,978.56-2,031.24

Finding the Fourth Proportional to 5,318.22, 7,978.56 and 2,031.24

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Solution

The fourth proportional to 5,318.22, 7,978.56 and 2,031.24 is: 3,047.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.22 : 7,978.56 = 2,031.24 : x
  2. Step 2: Convert to fraction form
    5,318.22/7,978.56 = 2,031.24/x
  3. Step 3: Cross multiply
    5,318.22x = 7,978.56 × 2,031.24
  4. Step 4: Simplify right side
    5,318.22x = 16,206,370.21
  5. Step 5: Solve for x
    x = 16,206,370.21/5,318.22
  6. Step 6: Final answer
    x = 3,047.33

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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.