Home / 3,825.25-5,281.95-3,117.20

Finding the Fourth Proportional to 3,825.25, 5,281.95 and 3,117.20

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Solution

The fourth proportional to 3,825.25, 5,281.95 and 3,117.20 is: 4,304.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.25 : 5,281.95 = 3,117.20 : x
  2. Step 2: Convert to fraction form
    3,825.25/5,281.95 = 3,117.20/x
  3. Step 3: Cross multiply
    3,825.25x = 5,281.95 × 3,117.20
  4. Step 4: Simplify right side
    3,825.25x = 16,464,879.82
  5. Step 5: Solve for x
    x = 16,464,879.82/3,825.25
  6. Step 6: Final answer
    x = 4,304.27

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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.