Home / 3,363.45-4,638.63-2,418.78

Finding the Fourth Proportional to 3,363.45, 4,638.63 and 2,418.78

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Solution

The fourth proportional to 3,363.45, 4,638.63 and 2,418.78 is: 3,335.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.45 : 4,638.63 = 2,418.78 : x
  2. Step 2: Convert to fraction form
    3,363.45/4,638.63 = 2,418.78/x
  3. Step 3: Cross multiply
    3,363.45x = 4,638.63 × 2,418.78
  4. Step 4: Simplify right side
    3,363.45x = 11,219,825.47
  5. Step 5: Solve for x
    x = 11,219,825.47/3,363.45
  6. Step 6: Final answer
    x = 3,335.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.