Home / 2,778.72-4,167.97-1,545.35

Finding the Fourth Proportional to 2,778.72, 4,167.97 and 1,545.35

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Solution

The fourth proportional to 2,778.72, 4,167.97 and 1,545.35 is: 2,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.72 : 4,167.97 = 1,545.35 : x
  2. Step 2: Convert to fraction form
    2,778.72/4,167.97 = 1,545.35/x
  3. Step 3: Cross multiply
    2,778.72x = 4,167.97 × 1,545.35
  4. Step 4: Simplify right side
    2,778.72x = 6,440,972.44
  5. Step 5: Solve for x
    x = 6,440,972.44/2,778.72
  6. Step 6: Final answer
    x = 2,317.96

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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.