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Finding the Fourth Proportional to 2,679.75, 4,017.30 and 1,037.49

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Solution

The fourth proportional to 2,679.75, 4,017.30 and 1,037.49 is: 1,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.75 : 4,017.30 = 1,037.49 : x
  2. Step 2: Convert to fraction form
    2,679.75/4,017.30 = 1,037.49/x
  3. Step 3: Cross multiply
    2,679.75x = 4,017.30 × 1,037.49
  4. Step 4: Simplify right side
    2,679.75x = 4,167,908.58
  5. Step 5: Solve for x
    x = 4,167,908.58/2,679.75
  6. Step 6: Final answer
    x = 1,555.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.