Home / 7,219.89-10,825.79-2,538.60

Finding the Fourth Proportional to 7,219.89, 10,825.79 and 2,538.60

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Solution

The fourth proportional to 7,219.89, 10,825.79 and 2,538.60 is: 3,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.89 : 10,825.79 = 2,538.60 : x
  2. Step 2: Convert to fraction form
    7,219.89/10,825.79 = 2,538.60/x
  3. Step 3: Cross multiply
    7,219.89x = 10,825.79 × 2,538.60
  4. Step 4: Simplify right side
    7,219.89x = 27,482,337.80
  5. Step 5: Solve for x
    x = 27,482,337.80/7,219.89
  6. Step 6: Final answer
    x = 3,806.48

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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.