Home / 3,863.22-5,329.36-2,290.20

Finding the Fourth Proportional to 3,863.22, 5,329.36 and 2,290.20

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Solution

The fourth proportional to 3,863.22, 5,329.36 and 2,290.20 is: 3,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.22 : 5,329.36 = 2,290.20 : x
  2. Step 2: Convert to fraction form
    3,863.22/5,329.36 = 2,290.20/x
  3. Step 3: Cross multiply
    3,863.22x = 5,329.36 × 2,290.20
  4. Step 4: Simplify right side
    3,863.22x = 12,205,300.27
  5. Step 5: Solve for x
    x = 12,205,300.27/3,863.22
  6. Step 6: Final answer
    x = 3,159.36

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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.