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Finding the Fourth Proportional to 1,797.64, 2,478.14 and 1,299.49

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Solution

The fourth proportional to 1,797.64, 2,478.14 and 1,299.49 is: 1,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797.64 : 2,478.14 = 1,299.49 : x
  2. Step 2: Convert to fraction form
    1,797.64/2,478.14 = 1,299.49/x
  3. Step 3: Cross multiply
    1,797.64x = 2,478.14 × 1,299.49
  4. Step 4: Simplify right side
    1,797.64x = 3,220,318.15
  5. Step 5: Solve for x
    x = 3,220,318.15/1,797.64
  6. Step 6: Final answer
    x = 1,791.41

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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.