Home / 3,845.85-5,307.19-2,167.25

Finding the Fourth Proportional to 3,845.85, 5,307.19 and 2,167.25

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Solution

The fourth proportional to 3,845.85, 5,307.19 and 2,167.25 is: 2,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.85 : 5,307.19 = 2,167.25 : x
  2. Step 2: Convert to fraction form
    3,845.85/5,307.19 = 2,167.25/x
  3. Step 3: Cross multiply
    3,845.85x = 5,307.19 × 2,167.25
  4. Step 4: Simplify right side
    3,845.85x = 11,502,007.53
  5. Step 5: Solve for x
    x = 11,502,007.53/3,845.85
  6. Step 6: Final answer
    x = 2,990.76

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1.5x scale

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.