Home / 5,615.27-8,422.84-2,152.52

Finding the Fourth Proportional to 5,615.27, 8,422.84 and 2,152.52

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Solution

The fourth proportional to 5,615.27, 8,422.84 and 2,152.52 is: 3,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.27 : 8,422.84 = 2,152.52 : x
  2. Step 2: Convert to fraction form
    5,615.27/8,422.84 = 2,152.52/x
  3. Step 3: Cross multiply
    5,615.27x = 8,422.84 × 2,152.52
  4. Step 4: Simplify right side
    5,615.27x = 18,130,278.68
  5. Step 5: Solve for x
    x = 18,130,278.68/5,615.27
  6. Step 6: Final answer
    x = 3,228.75

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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.