Home / 3,247.20-4,871.16-1,298.34

Finding the Fourth Proportional to 3,247.20, 4,871.16 and 1,298.34

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Solution

The fourth proportional to 3,247.20, 4,871.16 and 1,298.34 is: 1,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.20 : 4,871.16 = 1,298.34 : x
  2. Step 2: Convert to fraction form
    3,247.20/4,871.16 = 1,298.34/x
  3. Step 3: Cross multiply
    3,247.20x = 4,871.16 × 1,298.34
  4. Step 4: Simplify right side
    3,247.20x = 6,324,421.87
  5. Step 5: Solve for x
    x = 6,324,421.87/3,247.20
  6. Step 6: Final answer
    x = 1,947.65

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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.