Home / 2,178.61-3,266.09-1,518.55

Finding the Fourth Proportional to 2,178.61, 3,266.09 and 1,518.55

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Solution

The fourth proportional to 2,178.61, 3,266.09 and 1,518.55 is: 2,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.61 : 3,266.09 = 1,518.55 : x
  2. Step 2: Convert to fraction form
    2,178.61/3,266.09 = 1,518.55/x
  3. Step 3: Cross multiply
    2,178.61x = 3,266.09 × 1,518.55
  4. Step 4: Simplify right side
    2,178.61x = 4,959,720.97
  5. Step 5: Solve for x
    x = 4,959,720.97/2,178.61
  6. Step 6: Final answer
    x = 2,276.55

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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.