Home / 3,948.16-5,448.66-2,619.60

Finding the Fourth Proportional to 3,948.16, 5,448.66 and 2,619.60

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Solution

The fourth proportional to 3,948.16, 5,448.66 and 2,619.60 is: 3,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.16 : 5,448.66 = 2,619.60 : x
  2. Step 2: Convert to fraction form
    3,948.16/5,448.66 = 2,619.60/x
  3. Step 3: Cross multiply
    3,948.16x = 5,448.66 × 2,619.60
  4. Step 4: Simplify right side
    3,948.16x = 14,273,309.74
  5. Step 5: Solve for x
    x = 14,273,309.74/3,948.16
  6. Step 6: Final answer
    x = 3,615.18

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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.