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Finding the Fourth Proportional to 2,418.19, 3,627.09 and 774.29

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Solution

The fourth proportional to 2,418.19, 3,627.09 and 774.29 is: 1,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.19 : 3,627.09 = 774.29 : x
  2. Step 2: Convert to fraction form
    2,418.19/3,627.09 = 774.29/x
  3. Step 3: Cross multiply
    2,418.19x = 3,627.09 × 774.29
  4. Step 4: Simplify right side
    2,418.19x = 2,808,428.58
  5. Step 5: Solve for x
    x = 2,808,428.58/2,418.19
  6. Step 6: Final answer
    x = 1,161.38

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1.5x scale

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.