Home / 3,211.40-4,818.12-1,263.76

Finding the Fourth Proportional to 3,211.40, 4,818.12 and 1,263.76

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Solution

The fourth proportional to 3,211.40, 4,818.12 and 1,263.76 is: 1,896.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.40 : 4,818.12 = 1,263.76 : x
  2. Step 2: Convert to fraction form
    3,211.40/4,818.12 = 1,263.76/x
  3. Step 3: Cross multiply
    3,211.40x = 4,818.12 × 1,263.76
  4. Step 4: Simplify right side
    3,211.40x = 6,088,947.33
  5. Step 5: Solve for x
    x = 6,088,947.33/3,211.40
  6. Step 6: Final answer
    x = 1,896.04

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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.