Home / 3,111.92-4,293.90-2,521.44

Finding the Fourth Proportional to 3,111.92, 4,293.90 and 2,521.44

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Solution

The fourth proportional to 3,111.92, 4,293.90 and 2,521.44 is: 3,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.92 : 4,293.90 = 2,521.44 : x
  2. Step 2: Convert to fraction form
    3,111.92/4,293.90 = 2,521.44/x
  3. Step 3: Cross multiply
    3,111.92x = 4,293.90 × 2,521.44
  4. Step 4: Simplify right side
    3,111.92x = 10,826,811.22
  5. Step 5: Solve for x
    x = 10,826,811.22/3,111.92
  6. Step 6: Final answer
    x = 3,479.14

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1.5x scale

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.