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Finding the Fourth Proportional to 2,700.88, 4,050.74 and 1,239.71

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Solution

The fourth proportional to 2,700.88, 4,050.74 and 1,239.71 is: 1,859.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.88 : 4,050.74 = 1,239.71 : x
  2. Step 2: Convert to fraction form
    2,700.88/4,050.74 = 1,239.71/x
  3. Step 3: Cross multiply
    2,700.88x = 4,050.74 × 1,239.71
  4. Step 4: Simplify right side
    2,700.88x = 5,021,725.73
  5. Step 5: Solve for x
    x = 5,021,725.73/2,700.88
  6. Step 6: Final answer
    x = 1,859.29

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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.