Home / 7,278.72-10,918.02-2,084.60

Finding the Fourth Proportional to 7,278.72, 10,918.02 and 2,084.60

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Solution

The fourth proportional to 7,278.72, 10,918.02 and 2,084.60 is: 3,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.72 : 10,918.02 = 2,084.60 : x
  2. Step 2: Convert to fraction form
    7,278.72/10,918.02 = 2,084.60/x
  3. Step 3: Cross multiply
    7,278.72x = 10,918.02 × 2,084.60
  4. Step 4: Simplify right side
    7,278.72x = 22,759,704.49
  5. Step 5: Solve for x
    x = 22,759,704.49/7,278.72
  6. Step 6: Final answer
    x = 3,126.88

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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.