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Finding the Fourth Proportional to 3,567.91, 5,351.91 and 1,257.79

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Solution

The fourth proportional to 3,567.91, 5,351.91 and 1,257.79 is: 1,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,567.91 : 5,351.91 = 1,257.79 : x
  2. Step 2: Convert to fraction form
    3,567.91/5,351.91 = 1,257.79/x
  3. Step 3: Cross multiply
    3,567.91x = 5,351.91 × 1,257.79
  4. Step 4: Simplify right side
    3,567.91x = 6,731,578.88
  5. Step 5: Solve for x
    x = 6,731,578.88/3,567.91
  6. Step 6: Final answer
    x = 1,886.70

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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.