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Finding the Fourth Proportional to 2,608.00, 3,920.20 and 2,411.17

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Solution

The fourth proportional to 2,608.00, 3,920.20 and 2,411.17 is: 3,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608.00 : 3,920.20 = 2,411.17 : x
  2. Step 2: Convert to fraction form
    2,608.00/3,920.20 = 2,411.17/x
  3. Step 3: Cross multiply
    2,608.00x = 3,920.20 × 2,411.17
  4. Step 4: Simplify right side
    2,608.00x = 9,452,252.81
  5. Step 5: Solve for x
    x = 9,452,252.81/2,608.00
  6. Step 6: Final answer
    x = 3,624.33

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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.