Home / 2,176.31-3,263.76-943.40

Finding the Fourth Proportional to 2,176.31, 3,263.76 and 943.40

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Solution

The fourth proportional to 2,176.31, 3,263.76 and 943.40 is: 1,414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.31 : 3,263.76 = 943.40 : x
  2. Step 2: Convert to fraction form
    2,176.31/3,263.76 = 943.40/x
  3. Step 3: Cross multiply
    2,176.31x = 3,263.76 × 943.40
  4. Step 4: Simplify right side
    2,176.31x = 3,079,014.87
  5. Step 5: Solve for x
    x = 3,079,014.87/2,176.31
  6. Step 6: Final answer
    x = 1,414.79

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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.