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Finding the Fourth Proportional to 2,700.50, 3,726.69 and 1,872.98

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Solution

The fourth proportional to 2,700.50, 3,726.69 and 1,872.98 is: 2,584.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.50 : 3,726.69 = 1,872.98 : x
  2. Step 2: Convert to fraction form
    2,700.50/3,726.69 = 1,872.98/x
  3. Step 3: Cross multiply
    2,700.50x = 3,726.69 × 1,872.98
  4. Step 4: Simplify right side
    2,700.50x = 6,980,015.84
  5. Step 5: Solve for x
    x = 6,980,015.84/2,700.50
  6. Step 6: Final answer
    x = 2,584.71

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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.