Home / 3,869.64-5,340.06-2,297.70

Finding the Fourth Proportional to 3,869.64, 5,340.06 and 2,297.70

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Solution

The fourth proportional to 3,869.64, 5,340.06 and 2,297.70 is: 3,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.64 : 5,340.06 = 2,297.70 : x
  2. Step 2: Convert to fraction form
    3,869.64/5,340.06 = 2,297.70/x
  3. Step 3: Cross multiply
    3,869.64x = 5,340.06 × 2,297.70
  4. Step 4: Simplify right side
    3,869.64x = 12,269,855.86
  5. Step 5: Solve for x
    x = 12,269,855.86/3,869.64
  6. Step 6: Final answer
    x = 3,170.80

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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.