Home / 2,931.92-4,406.52-1,963.76

Finding the Fourth Proportional to 2,931.92, 4,406.52 and 1,963.76

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Solution

The fourth proportional to 2,931.92, 4,406.52 and 1,963.76 is: 2,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.92 : 4,406.52 = 1,963.76 : x
  2. Step 2: Convert to fraction form
    2,931.92/4,406.52 = 1,963.76/x
  3. Step 3: Cross multiply
    2,931.92x = 4,406.52 × 1,963.76
  4. Step 4: Simplify right side
    2,931.92x = 8,653,347.72
  5. Step 5: Solve for x
    x = 8,653,347.72/2,931.92
  6. Step 6: Final answer
    x = 2,951.43

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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.