Home / 2,418.53-3,625.36-1,320.62

Finding the Fourth Proportional to 2,418.53, 3,625.36 and 1,320.62

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Solution

The fourth proportional to 2,418.53, 3,625.36 and 1,320.62 is: 1,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.53 : 3,625.36 = 1,320.62 : x
  2. Step 2: Convert to fraction form
    2,418.53/3,625.36 = 1,320.62/x
  3. Step 3: Cross multiply
    2,418.53x = 3,625.36 × 1,320.62
  4. Step 4: Simplify right side
    2,418.53x = 4,787,701.49
  5. Step 5: Solve for x
    x = 4,787,701.49/2,418.53
  6. Step 6: Final answer
    x = 1,979.60

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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.