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Finding the Fourth Proportional to 2,777.70, 4,171.35 and 1,481.70

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Solution

The fourth proportional to 2,777.70, 4,171.35 and 1,481.70 is: 2,225.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.70 : 4,171.35 = 1,481.70 : x
  2. Step 2: Convert to fraction form
    2,777.70/4,171.35 = 1,481.70/x
  3. Step 3: Cross multiply
    2,777.70x = 4,171.35 × 1,481.70
  4. Step 4: Simplify right side
    2,777.70x = 6,180,689.30
  5. Step 5: Solve for x
    x = 6,180,689.30/2,777.70
  6. Step 6: Final answer
    x = 2,225.11

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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.