Home / 3,948.58-5,448.90-2,180.18

Finding the Fourth Proportional to 3,948.58, 5,448.90 and 2,180.18

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Solution

The fourth proportional to 3,948.58, 5,448.90 and 2,180.18 is: 3,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.58 : 5,448.90 = 2,180.18 : x
  2. Step 2: Convert to fraction form
    3,948.58/5,448.90 = 2,180.18/x
  3. Step 3: Cross multiply
    3,948.58x = 5,448.90 × 2,180.18
  4. Step 4: Simplify right side
    3,948.58x = 11,879,582.80
  5. Step 5: Solve for x
    x = 11,879,582.80/3,948.58
  6. Step 6: Final answer
    x = 3,008.57

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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.