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Finding the Fourth Proportional to 2,799.32, 3,863.41 and 1,807.48

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Solution

The fourth proportional to 2,799.32, 3,863.41 and 1,807.48 is: 2,494.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.32 : 3,863.41 = 1,807.48 : x
  2. Step 2: Convert to fraction form
    2,799.32/3,863.41 = 1,807.48/x
  3. Step 3: Cross multiply
    2,799.32x = 3,863.41 × 1,807.48
  4. Step 4: Simplify right side
    2,799.32x = 6,983,016.99
  5. Step 5: Solve for x
    x = 6,983,016.99/2,799.32
  6. Step 6: Final answer
    x = 2,494.54

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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.