Home / 3,245.10-4,475.48-2,743.40

Finding the Fourth Proportional to 3,245.10, 4,475.48 and 2,743.40

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Solution

The fourth proportional to 3,245.10, 4,475.48 and 2,743.40 is: 3,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.10 : 4,475.48 = 2,743.40 : x
  2. Step 2: Convert to fraction form
    3,245.10/4,475.48 = 2,743.40/x
  3. Step 3: Cross multiply
    3,245.10x = 4,475.48 × 2,743.40
  4. Step 4: Simplify right side
    3,245.10x = 12,278,031.83
  5. Step 5: Solve for x
    x = 12,278,031.83/3,245.10
  6. Step 6: Final answer
    x = 3,783.56

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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.