Home / 5,619.52-8,424.78-3,859.18

Finding the Fourth Proportional to 5,619.52, 8,424.78 and 3,859.18

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Solution

The fourth proportional to 5,619.52, 8,424.78 and 3,859.18 is: 5,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.52 : 8,424.78 = 3,859.18 : x
  2. Step 2: Convert to fraction form
    5,619.52/8,424.78 = 3,859.18/x
  3. Step 3: Cross multiply
    5,619.52x = 8,424.78 × 3,859.18
  4. Step 4: Simplify right side
    5,619.52x = 32,512,742.48
  5. Step 5: Solve for x
    x = 32,512,742.48/5,619.52
  6. Step 6: Final answer
    x = 5,785.68

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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.