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Finding the Fourth Proportional to 1,799.44, 2,480.24 and 1,425.76

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Solution

The fourth proportional to 1,799.44, 2,480.24 and 1,425.76 is: 1,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,799.44 : 2,480.24 = 1,425.76 : x
  2. Step 2: Convert to fraction form
    1,799.44/2,480.24 = 1,425.76/x
  3. Step 3: Cross multiply
    1,799.44x = 2,480.24 × 1,425.76
  4. Step 4: Simplify right side
    1,799.44x = 3,536,226.98
  5. Step 5: Solve for x
    x = 3,536,226.98/1,799.44
  6. Step 6: Final answer
    x = 1,965.18

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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.