Home / 3,126.56-4,686.55-1,481.15

Finding the Fourth Proportional to 3,126.56, 4,686.55 and 1,481.15

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Solution

The fourth proportional to 3,126.56, 4,686.55 and 1,481.15 is: 2,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.56 : 4,686.55 = 1,481.15 : x
  2. Step 2: Convert to fraction form
    3,126.56/4,686.55 = 1,481.15/x
  3. Step 3: Cross multiply
    3,126.56x = 4,686.55 × 1,481.15
  4. Step 4: Simplify right side
    3,126.56x = 6,941,491.55
  5. Step 5: Solve for x
    x = 6,941,491.55/3,126.56
  6. Step 6: Final answer
    x = 2,220.17

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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.