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Finding the Fourth Proportional to 2,417.97, 3,626.85 and 774.60

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Solution

The fourth proportional to 2,417.97, 3,626.85 and 774.60 is: 1,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.97 : 3,626.85 = 774.60 : x
  2. Step 2: Convert to fraction form
    2,417.97/3,626.85 = 774.60/x
  3. Step 3: Cross multiply
    2,417.97x = 3,626.85 × 774.60
  4. Step 4: Simplify right side
    2,417.97x = 2,809,358.01
  5. Step 5: Solve for x
    x = 2,809,358.01/2,417.97
  6. Step 6: Final answer
    x = 1,161.87

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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.