Home / 3,439.88-4,747.02-1,867.98

Finding the Fourth Proportional to 3,439.88, 4,747.02 and 1,867.98

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Solution

The fourth proportional to 3,439.88, 4,747.02 and 1,867.98 is: 2,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.88 : 4,747.02 = 1,867.98 : x
  2. Step 2: Convert to fraction form
    3,439.88/4,747.02 = 1,867.98/x
  3. Step 3: Cross multiply
    3,439.88x = 4,747.02 × 1,867.98
  4. Step 4: Simplify right side
    3,439.88x = 8,867,338.42
  5. Step 5: Solve for x
    x = 8,867,338.42/3,439.88
  6. Step 6: Final answer
    x = 2,577.80

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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.