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Finding the Fourth Proportional to 1,608.66, 2,412.99 and 634.23

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Solution

The fourth proportional to 1,608.66, 2,412.99 and 634.23 is: 951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.66 : 2,412.99 = 634.23 : x
  2. Step 2: Convert to fraction form
    1,608.66/2,412.99 = 634.23/x
  3. Step 3: Cross multiply
    1,608.66x = 2,412.99 × 634.23
  4. Step 4: Simplify right side
    1,608.66x = 1,530,390.65
  5. Step 5: Solve for x
    x = 1,530,390.65/1,608.66
  6. Step 6: Final answer
    x = 951.35

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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.