Home / 3,948.74-5,448.66-2,354.90

Finding the Fourth Proportional to 3,948.74, 5,448.66 and 2,354.90

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Solution

The fourth proportional to 3,948.74, 5,448.66 and 2,354.90 is: 3,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.74 : 5,448.66 = 2,354.90 : x
  2. Step 2: Convert to fraction form
    3,948.74/5,448.66 = 2,354.90/x
  3. Step 3: Cross multiply
    3,948.74x = 5,448.66 × 2,354.90
  4. Step 4: Simplify right side
    3,948.74x = 12,831,049.43
  5. Step 5: Solve for x
    x = 12,831,049.43/3,948.74
  6. Step 6: Final answer
    x = 3,249.40

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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.