Home / 3,882.15-5,357.21-2,113.65

Finding the Fourth Proportional to 3,882.15, 5,357.21 and 2,113.65

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Solution

The fourth proportional to 3,882.15, 5,357.21 and 2,113.65 is: 2,916.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.15 : 5,357.21 = 2,113.65 : x
  2. Step 2: Convert to fraction form
    3,882.15/5,357.21 = 2,113.65/x
  3. Step 3: Cross multiply
    3,882.15x = 5,357.21 × 2,113.65
  4. Step 4: Simplify right side
    3,882.15x = 11,323,256.35
  5. Step 5: Solve for x
    x = 11,323,256.35/3,882.15
  6. Step 6: Final answer
    x = 2,916.75

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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.