Home / 3,807.72-5,254.38-2,235.60

Finding the Fourth Proportional to 3,807.72, 5,254.38 and 2,235.60

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Solution

The fourth proportional to 3,807.72, 5,254.38 and 2,235.60 is: 3,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.72 : 5,254.38 = 2,235.60 : x
  2. Step 2: Convert to fraction form
    3,807.72/5,254.38 = 2,235.60/x
  3. Step 3: Cross multiply
    3,807.72x = 5,254.38 × 2,235.60
  4. Step 4: Simplify right side
    3,807.72x = 11,746,691.93
  5. Step 5: Solve for x
    x = 11,746,691.93/3,807.72
  6. Step 6: Final answer
    x = 3,084.97

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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.