Home / 3,969.30-5,952.43-1,887.70

Finding the Fourth Proportional to 3,969.30, 5,952.43 and 1,887.70

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Solution

The fourth proportional to 3,969.30, 5,952.43 and 1,887.70 is: 2,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.30 : 5,952.43 = 1,887.70 : x
  2. Step 2: Convert to fraction form
    3,969.30/5,952.43 = 1,887.70/x
  3. Step 3: Cross multiply
    3,969.30x = 5,952.43 × 1,887.70
  4. Step 4: Simplify right side
    3,969.30x = 11,236,392.67
  5. Step 5: Solve for x
    x = 11,236,392.67/3,969.30
  6. Step 6: Final answer
    x = 2,830.82

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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.