Home / 6,664.50-9,197.82-3,870

Finding the Fourth Proportional to 6,664.50, 9,197.82 and 3,870

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Solution

The fourth proportional to 6,664.50, 9,197.82 and 3,870 is: 5,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.50 : 9,197.82 = 3,870 : x
  2. Step 2: Convert to fraction form
    6,664.50/9,197.82 = 3,870/x
  3. Step 3: Cross multiply
    6,664.50x = 9,197.82 × 3,870
  4. Step 4: Simplify right side
    6,664.50x = 35,595,563.40
  5. Step 5: Solve for x
    x = 35,595,563.40/6,664.50
  6. Step 6: Final answer
    x = 5,341.07

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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.