Home / 2,869.95-4,304.96-1,115.05

Finding the Fourth Proportional to 2,869.95, 4,304.96 and 1,115.05

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Solution

The fourth proportional to 2,869.95, 4,304.96 and 1,115.05 is: 1,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.95 : 4,304.96 = 1,115.05 : x
  2. Step 2: Convert to fraction form
    2,869.95/4,304.96 = 1,115.05/x
  3. Step 3: Cross multiply
    2,869.95x = 4,304.96 × 1,115.05
  4. Step 4: Simplify right side
    2,869.95x = 4,800,229.31
  5. Step 5: Solve for x
    x = 4,800,229.31/2,869.95
  6. Step 6: Final answer
    x = 1,672.59

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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.