Home / 4,079.65-5,629.85-2,287.12

Finding the Fourth Proportional to 4,079.65, 5,629.85 and 2,287.12

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Solution

The fourth proportional to 4,079.65, 5,629.85 and 2,287.12 is: 3,156.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.65 : 5,629.85 = 2,287.12 : x
  2. Step 2: Convert to fraction form
    4,079.65/5,629.85 = 2,287.12/x
  3. Step 3: Cross multiply
    4,079.65x = 5,629.85 × 2,287.12
  4. Step 4: Simplify right side
    4,079.65x = 12,876,142.53
  5. Step 5: Solve for x
    x = 12,876,142.53/4,079.65
  6. Step 6: Final answer
    x = 3,156.19

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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.