Home / 4,579.20-6,825.60-4,147.20

Finding the Fourth Proportional to 4,579.20, 6,825.60 and 4,147.20

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Solution

The fourth proportional to 4,579.20, 6,825.60 and 4,147.20 is: 6,181.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,579.20 : 6,825.60 = 4,147.20 : x
  2. Step 2: Convert to fraction form
    4,579.20/6,825.60 = 4,147.20/x
  3. Step 3: Cross multiply
    4,579.20x = 6,825.60 × 4,147.20
  4. Step 4: Simplify right side
    4,579.20x = 28,307,128.32
  5. Step 5: Solve for x
    x = 28,307,128.32/4,579.20
  6. Step 6: Final answer
    x = 6,181.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.