Home / 2,912.88-4,366.48-1,869.96

Finding the Fourth Proportional to 2,912.88, 4,366.48 and 1,869.96

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Solution

The fourth proportional to 2,912.88, 4,366.48 and 1,869.96 is: 2,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.88 : 4,366.48 = 1,869.96 : x
  2. Step 2: Convert to fraction form
    2,912.88/4,366.48 = 1,869.96/x
  3. Step 3: Cross multiply
    2,912.88x = 4,366.48 × 1,869.96
  4. Step 4: Simplify right side
    2,912.88x = 8,165,142.94
  5. Step 5: Solve for x
    x = 8,165,142.94/2,912.88
  6. Step 6: Final answer
    x = 2,803.12

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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.