Home / 2,725.45-4,088.27-876.56

Finding the Fourth Proportional to 2,725.45, 4,088.27 and 876.56

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Solution

The fourth proportional to 2,725.45, 4,088.27 and 876.56 is: 1,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.45 : 4,088.27 = 876.56 : x
  2. Step 2: Convert to fraction form
    2,725.45/4,088.27 = 876.56/x
  3. Step 3: Cross multiply
    2,725.45x = 4,088.27 × 876.56
  4. Step 4: Simplify right side
    2,725.45x = 3,583,613.95
  5. Step 5: Solve for x
    x = 3,583,613.95/2,725.45
  6. Step 6: Final answer
    x = 1,314.87

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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.