Home / 3,845.87-5,307.62-2,167.19

Finding the Fourth Proportional to 3,845.87, 5,307.62 and 2,167.19

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Solution

The fourth proportional to 3,845.87, 5,307.62 and 2,167.19 is: 2,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.87 : 5,307.62 = 2,167.19 : x
  2. Step 2: Convert to fraction form
    3,845.87/5,307.62 = 2,167.19/x
  3. Step 3: Cross multiply
    3,845.87x = 5,307.62 × 2,167.19
  4. Step 4: Simplify right side
    3,845.87x = 11,502,620.99
  5. Step 5: Solve for x
    x = 11,502,620.99/3,845.87
  6. Step 6: Final answer
    x = 2,990.90

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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.