Home / 7,166.17-9,888.77-4,021.75

Finding the Fourth Proportional to 7,166.17, 9,888.77 and 4,021.75

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Solution

The fourth proportional to 7,166.17, 9,888.77 and 4,021.75 is: 5,549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.17 : 9,888.77 = 4,021.75 : x
  2. Step 2: Convert to fraction form
    7,166.17/9,888.77 = 4,021.75/x
  3. Step 3: Cross multiply
    7,166.17x = 9,888.77 × 4,021.75
  4. Step 4: Simplify right side
    7,166.17x = 39,770,170.80
  5. Step 5: Solve for x
    x = 39,770,170.80/7,166.17
  6. Step 6: Final answer
    x = 5,549.71

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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.