Home / 3,948.05-5,448.09-2,455.92

Finding the Fourth Proportional to 3,948.05, 5,448.09 and 2,455.92

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Solution

The fourth proportional to 3,948.05, 5,448.09 and 2,455.92 is: 3,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.05 : 5,448.09 = 2,455.92 : x
  2. Step 2: Convert to fraction form
    3,948.05/5,448.09 = 2,455.92/x
  3. Step 3: Cross multiply
    3,948.05x = 5,448.09 × 2,455.92
  4. Step 4: Simplify right side
    3,948.05x = 13,380,073.19
  5. Step 5: Solve for x
    x = 13,380,073.19/3,948.05
  6. Step 6: Final answer
    x = 3,389.03

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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.