Home / 3,815.25-5,264.88-2,136.35

Finding the Fourth Proportional to 3,815.25, 5,264.88 and 2,136.35

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Solution

The fourth proportional to 3,815.25, 5,264.88 and 2,136.35 is: 2,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.25 : 5,264.88 = 2,136.35 : x
  2. Step 2: Convert to fraction form
    3,815.25/5,264.88 = 2,136.35/x
  3. Step 3: Cross multiply
    3,815.25x = 5,264.88 × 2,136.35
  4. Step 4: Simplify right side
    3,815.25x = 11,247,626.39
  5. Step 5: Solve for x
    x = 11,247,626.39/3,815.25
  6. Step 6: Final answer
    x = 2,948.07

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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.