Home / 3,126.93-4,688.10-1,481.55

Finding the Fourth Proportional to 3,126.93, 4,688.10 and 1,481.55

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Solution

The fourth proportional to 3,126.93, 4,688.10 and 1,481.55 is: 2,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.93 : 4,688.10 = 1,481.55 : x
  2. Step 2: Convert to fraction form
    3,126.93/4,688.10 = 1,481.55/x
  3. Step 3: Cross multiply
    3,126.93x = 4,688.10 × 1,481.55
  4. Step 4: Simplify right side
    3,126.93x = 6,945,654.56
  5. Step 5: Solve for x
    x = 6,945,654.56/3,126.93
  6. Step 6: Final answer
    x = 2,221.24

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1.5x scale

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.