Home / 3,418.47-5,124.49-1,856.18

Finding the Fourth Proportional to 3,418.47, 5,124.49 and 1,856.18

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Solution

The fourth proportional to 3,418.47, 5,124.49 and 1,856.18 is: 2,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.47 : 5,124.49 = 1,856.18 : x
  2. Step 2: Convert to fraction form
    3,418.47/5,124.49 = 1,856.18/x
  3. Step 3: Cross multiply
    3,418.47x = 5,124.49 × 1,856.18
  4. Step 4: Simplify right side
    3,418.47x = 9,511,984.02
  5. Step 5: Solve for x
    x = 9,511,984.02/3,418.47
  6. Step 6: Final answer
    x = 2,782.53

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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.