Home / 3,815.12-5,264.81-2,136.52

Finding the Fourth Proportional to 3,815.12, 5,264.81 and 2,136.52

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Solution

The fourth proportional to 3,815.12, 5,264.81 and 2,136.52 is: 2,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.12 : 5,264.81 = 2,136.52 : x
  2. Step 2: Convert to fraction form
    3,815.12/5,264.81 = 2,136.52/x
  3. Step 3: Cross multiply
    3,815.12x = 5,264.81 × 2,136.52
  4. Step 4: Simplify right side
    3,815.12x = 11,248,340.20
  5. Step 5: Solve for x
    x = 11,248,340.20/3,815.12
  6. Step 6: Final answer
    x = 2,948.36

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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.