Home / 2,911.31-4,017.92-1,652.71

Finding the Fourth Proportional to 2,911.31, 4,017.92 and 1,652.71

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Solution

The fourth proportional to 2,911.31, 4,017.92 and 1,652.71 is: 2,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.31 : 4,017.92 = 1,652.71 : x
  2. Step 2: Convert to fraction form
    2,911.31/4,017.92 = 1,652.71/x
  3. Step 3: Cross multiply
    2,911.31x = 4,017.92 × 1,652.71
  4. Step 4: Simplify right side
    2,911.31x = 6,640,438.25
  5. Step 5: Solve for x
    x = 6,640,438.25/2,911.31
  6. Step 6: Final answer
    x = 2,280.91

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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.