Home / 6,669.11-9,203.55-3,981.89

Finding the Fourth Proportional to 6,669.11, 9,203.55 and 3,981.89

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Solution

The fourth proportional to 6,669.11, 9,203.55 and 3,981.89 is: 5,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.11 : 9,203.55 = 3,981.89 : x
  2. Step 2: Convert to fraction form
    6,669.11/9,203.55 = 3,981.89/x
  3. Step 3: Cross multiply
    6,669.11x = 9,203.55 × 3,981.89
  4. Step 4: Simplify right side
    6,669.11x = 36,647,523.71
  5. Step 5: Solve for x
    x = 36,647,523.71/6,669.11
  6. Step 6: Final answer
    x = 5,495.11

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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.