Home / 3,815.02-5,264.11-2,136.49

Finding the Fourth Proportional to 3,815.02, 5,264.11 and 2,136.49

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Solution

The fourth proportional to 3,815.02, 5,264.11 and 2,136.49 is: 2,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.02 : 5,264.11 = 2,136.49 : x
  2. Step 2: Convert to fraction form
    3,815.02/5,264.11 = 2,136.49/x
  3. Step 3: Cross multiply
    3,815.02x = 5,264.11 × 2,136.49
  4. Step 4: Simplify right side
    3,815.02x = 11,246,736.88
  5. Step 5: Solve for x
    x = 11,246,736.88/3,815.02
  6. Step 6: Final answer
    x = 2,948.02

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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.