Home / 7,154.09-10,729.98-1,958.75

Finding the Fourth Proportional to 7,154.09, 10,729.98 and 1,958.75

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Solution

The fourth proportional to 7,154.09, 10,729.98 and 1,958.75 is: 2,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.09 : 10,729.98 = 1,958.75 : x
  2. Step 2: Convert to fraction form
    7,154.09/10,729.98 = 1,958.75/x
  3. Step 3: Cross multiply
    7,154.09x = 10,729.98 × 1,958.75
  4. Step 4: Simplify right side
    7,154.09x = 21,017,348.33
  5. Step 5: Solve for x
    x = 21,017,348.33/7,154.09
  6. Step 6: Final answer
    x = 2,937.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.