Home / 3,822.90-5,278.14-2,937.12

Finding the Fourth Proportional to 3,822.90, 5,278.14 and 2,937.12

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Solution

The fourth proportional to 3,822.90, 5,278.14 and 2,937.12 is: 4,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.90 : 5,278.14 = 2,937.12 : x
  2. Step 2: Convert to fraction form
    3,822.90/5,278.14 = 2,937.12/x
  3. Step 3: Cross multiply
    3,822.90x = 5,278.14 × 2,937.12
  4. Step 4: Simplify right side
    3,822.90x = 15,502,530.56
  5. Step 5: Solve for x
    x = 15,502,530.56/3,822.90
  6. Step 6: Final answer
    x = 4,055.18

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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.