Home / 3,815.08-5,264.51-2,136.11

Finding the Fourth Proportional to 3,815.08, 5,264.51 and 2,136.11

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Solution

The fourth proportional to 3,815.08, 5,264.51 and 2,136.11 is: 2,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.08 : 5,264.51 = 2,136.11 : x
  2. Step 2: Convert to fraction form
    3,815.08/5,264.51 = 2,136.11/x
  3. Step 3: Cross multiply
    3,815.08x = 5,264.51 × 2,136.11
  4. Step 4: Simplify right side
    3,815.08x = 11,245,535.45
  5. Step 5: Solve for x
    x = 11,245,535.45/3,815.08
  6. Step 6: Final answer
    x = 2,947.66

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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.