Home / 3,439.89-4,747.05-1,868.01

Finding the Fourth Proportional to 3,439.89, 4,747.05 and 1,868.01

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Solution

The fourth proportional to 3,439.89, 4,747.05 and 1,868.01 is: 2,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.89 : 4,747.05 = 1,868.01 : x
  2. Step 2: Convert to fraction form
    3,439.89/4,747.05 = 1,868.01/x
  3. Step 3: Cross multiply
    3,439.89x = 4,747.05 × 1,868.01
  4. Step 4: Simplify right side
    3,439.89x = 8,867,536.87
  5. Step 5: Solve for x
    x = 8,867,536.87/3,439.89
  6. Step 6: Final answer
    x = 2,577.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.