Home / 5,339.20-8,005.60-2,747.20

Finding the Fourth Proportional to 5,339.20, 8,005.60 and 2,747.20

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Solution

The fourth proportional to 5,339.20, 8,005.60 and 2,747.20 is: 4,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.20 : 8,005.60 = 2,747.20 : x
  2. Step 2: Convert to fraction form
    5,339.20/8,005.60 = 2,747.20/x
  3. Step 3: Cross multiply
    5,339.20x = 8,005.60 × 2,747.20
  4. Step 4: Simplify right side
    5,339.20x = 21,992,984.32
  5. Step 5: Solve for x
    x = 21,992,984.32/5,339.20
  6. Step 6: Final answer
    x = 4,119.15

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1.5x scale

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.