Home / 3,190.42-4,778.34-2,869.66

Finding the Fourth Proportional to 3,190.42, 4,778.34 and 2,869.66

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Solution

The fourth proportional to 3,190.42, 4,778.34 and 2,869.66 is: 4,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.42 : 4,778.34 = 2,869.66 : x
  2. Step 2: Convert to fraction form
    3,190.42/4,778.34 = 2,869.66/x
  3. Step 3: Cross multiply
    3,190.42x = 4,778.34 × 2,869.66
  4. Step 4: Simplify right side
    3,190.42x = 13,712,211.16
  5. Step 5: Solve for x
    x = 13,712,211.16/3,190.42
  6. Step 6: Final answer
    x = 4,297.93

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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.