Home / 3,948.40-5,448.77-2,270.10

Finding the Fourth Proportional to 3,948.40, 5,448.77 and 2,270.10

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Solution

The fourth proportional to 3,948.40, 5,448.77 and 2,270.10 is: 3,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.40 : 5,448.77 = 2,270.10 : x
  2. Step 2: Convert to fraction form
    3,948.40/5,448.77 = 2,270.10/x
  3. Step 3: Cross multiply
    3,948.40x = 5,448.77 × 2,270.10
  4. Step 4: Simplify right side
    3,948.40x = 12,369,255.05
  5. Step 5: Solve for x
    x = 12,369,255.05/3,948.40
  6. Step 6: Final answer
    x = 3,132.73

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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.