Home / 2,753.68-4,145.42-2,515.60

Finding the Fourth Proportional to 2,753.68, 4,145.42 and 2,515.60

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Solution

The fourth proportional to 2,753.68, 4,145.42 and 2,515.60 is: 3,787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.68 : 4,145.42 = 2,515.60 : x
  2. Step 2: Convert to fraction form
    2,753.68/4,145.42 = 2,515.60/x
  3. Step 3: Cross multiply
    2,753.68x = 4,145.42 × 2,515.60
  4. Step 4: Simplify right side
    2,753.68x = 10,428,218.55
  5. Step 5: Solve for x
    x = 10,428,218.55/2,753.68
  6. Step 6: Final answer
    x = 3,787.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.