Home / 3,213.60-4,851.24-3,181.20

Finding the Fourth Proportional to 3,213.60, 4,851.24 and 3,181.20

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Solution

The fourth proportional to 3,213.60, 4,851.24 and 3,181.20 is: 4,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.60 : 4,851.24 = 3,181.20 : x
  2. Step 2: Convert to fraction form
    3,213.60/4,851.24 = 3,181.20/x
  3. Step 3: Cross multiply
    3,213.60x = 4,851.24 × 3,181.20
  4. Step 4: Simplify right side
    3,213.60x = 15,432,764.69
  5. Step 5: Solve for x
    x = 15,432,764.69/3,213.60
  6. Step 6: Final answer
    x = 4,802.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.