Home / 3,948.48-5,449.92-2,457.60

Finding the Fourth Proportional to 3,948.48, 5,449.92 and 2,457.60

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Solution

The fourth proportional to 3,948.48, 5,449.92 and 2,457.60 is: 3,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.48 : 5,449.92 = 2,457.60 : x
  2. Step 2: Convert to fraction form
    3,948.48/5,449.92 = 2,457.60/x
  3. Step 3: Cross multiply
    3,948.48x = 5,449.92 × 2,457.60
  4. Step 4: Simplify right side
    3,948.48x = 13,393,723.39
  5. Step 5: Solve for x
    x = 13,393,723.39/3,948.48
  6. Step 6: Final answer
    x = 3,392.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.