Home / 2,760.28-4,136.94-1,115.08

Finding the Fourth Proportional to 2,760.28, 4,136.94 and 1,115.08

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Solution

The fourth proportional to 2,760.28, 4,136.94 and 1,115.08 is: 1,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.28 : 4,136.94 = 1,115.08 : x
  2. Step 2: Convert to fraction form
    2,760.28/4,136.94 = 1,115.08/x
  3. Step 3: Cross multiply
    2,760.28x = 4,136.94 × 1,115.08
  4. Step 4: Simplify right side
    2,760.28x = 4,613,019.06
  5. Step 5: Solve for x
    x = 4,613,019.06/2,760.28
  6. Step 6: Final answer
    x = 1,671.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.