Home / 5,627.20-8,424.60-4,979.20

Finding the Fourth Proportional to 5,627.20, 8,424.60 and 4,979.20

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Solution

The fourth proportional to 5,627.20, 8,424.60 and 4,979.20 is: 7,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.20 : 8,424.60 = 4,979.20 : x
  2. Step 2: Convert to fraction form
    5,627.20/8,424.60 = 4,979.20/x
  3. Step 3: Cross multiply
    5,627.20x = 8,424.60 × 4,979.20
  4. Step 4: Simplify right side
    5,627.20x = 41,947,768.32
  5. Step 5: Solve for x
    x = 41,947,768.32/5,627.20
  6. Step 6: Final answer
    x = 7,454.47

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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.