Home / 3,769.10-5,656.35-2,123.90

Finding the Fourth Proportional to 3,769.10, 5,656.35 and 2,123.90

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Solution

The fourth proportional to 3,769.10, 5,656.35 and 2,123.90 is: 3,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.10 : 5,656.35 = 2,123.90 : x
  2. Step 2: Convert to fraction form
    3,769.10/5,656.35 = 2,123.90/x
  3. Step 3: Cross multiply
    3,769.10x = 5,656.35 × 2,123.90
  4. Step 4: Simplify right side
    3,769.10x = 12,013,521.77
  5. Step 5: Solve for x
    x = 12,013,521.77/3,769.10
  6. Step 6: Final answer
    x = 3,187.37

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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.