Home / 2,631.21-3,943.05-1,932.39

Finding the Fourth Proportional to 2,631.21, 3,943.05 and 1,932.39

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Solution

The fourth proportional to 2,631.21, 3,943.05 and 1,932.39 is: 2,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.21 : 3,943.05 = 1,932.39 : x
  2. Step 2: Convert to fraction form
    2,631.21/3,943.05 = 1,932.39/x
  3. Step 3: Cross multiply
    2,631.21x = 3,943.05 × 1,932.39
  4. Step 4: Simplify right side
    2,631.21x = 7,619,510.39
  5. Step 5: Solve for x
    x = 7,619,510.39/2,631.21
  6. Step 6: Final answer
    x = 2,895.82

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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.