Home / 3,815.19-5,264.60-2,136.47

Finding the Fourth Proportional to 3,815.19, 5,264.60 and 2,136.47

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Solution

The fourth proportional to 3,815.19, 5,264.60 and 2,136.47 is: 2,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.19 : 5,264.60 = 2,136.47 : x
  2. Step 2: Convert to fraction form
    3,815.19/5,264.60 = 2,136.47/x
  3. Step 3: Cross multiply
    3,815.19x = 5,264.60 × 2,136.47
  4. Step 4: Simplify right side
    3,815.19x = 11,247,622.96
  5. Step 5: Solve for x
    x = 11,247,622.96/3,815.19
  6. Step 6: Final answer
    x = 2,948.12

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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.