Home / 3,948.68-5,448.36-2,270.06

Finding the Fourth Proportional to 3,948.68, 5,448.36 and 2,270.06

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Solution

The fourth proportional to 3,948.68, 5,448.36 and 2,270.06 is: 3,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.68 : 5,448.36 = 2,270.06 : x
  2. Step 2: Convert to fraction form
    3,948.68/5,448.36 = 2,270.06/x
  3. Step 3: Cross multiply
    3,948.68x = 5,448.36 × 2,270.06
  4. Step 4: Simplify right side
    3,948.68x = 12,368,104.10
  5. Step 5: Solve for x
    x = 12,368,104.10/3,948.68
  6. Step 6: Final answer
    x = 3,132.21

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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.