Home / 3,126.55-4,686.56-1,481.14

Finding the Fourth Proportional to 3,126.55, 4,686.56 and 1,481.14

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Solution

The fourth proportional to 3,126.55, 4,686.56 and 1,481.14 is: 2,220.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.55 : 4,686.56 = 1,481.14 : x
  2. Step 2: Convert to fraction form
    3,126.55/4,686.56 = 1,481.14/x
  3. Step 3: Cross multiply
    3,126.55x = 4,686.56 × 1,481.14
  4. Step 4: Simplify right side
    3,126.55x = 6,941,429.12
  5. Step 5: Solve for x
    x = 6,941,429.12/3,126.55
  6. Step 6: Final answer
    x = 2,220.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.