Home / 2,725.60-4,089.75-1,082.11

Finding the Fourth Proportional to 2,725.60, 4,089.75 and 1,082.11

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Solution

The fourth proportional to 2,725.60, 4,089.75 and 1,082.11 is: 1,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.60 : 4,089.75 = 1,082.11 : x
  2. Step 2: Convert to fraction form
    2,725.60/4,089.75 = 1,082.11/x
  3. Step 3: Cross multiply
    2,725.60x = 4,089.75 × 1,082.11
  4. Step 4: Simplify right side
    2,725.60x = 4,425,559.37
  5. Step 5: Solve for x
    x = 4,425,559.37/2,725.60
  6. Step 6: Final answer
    x = 1,623.70

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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.