Home / 3,720.66-5,134.16-2,228.55

Finding the Fourth Proportional to 3,720.66, 5,134.16 and 2,228.55

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Solution

The fourth proportional to 3,720.66, 5,134.16 and 2,228.55 is: 3,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.66 : 5,134.16 = 2,228.55 : x
  2. Step 2: Convert to fraction form
    3,720.66/5,134.16 = 2,228.55/x
  3. Step 3: Cross multiply
    3,720.66x = 5,134.16 × 2,228.55
  4. Step 4: Simplify right side
    3,720.66x = 11,441,721.13
  5. Step 5: Solve for x
    x = 11,441,721.13/3,720.66
  6. Step 6: Final answer
    x = 3,075.19

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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.