Home / 1,608.77-2,220.44-1,231.66

Finding the Fourth Proportional to 1,608.77, 2,220.44 and 1,231.66

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Solution

The fourth proportional to 1,608.77, 2,220.44 and 1,231.66 is: 1,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.77 : 2,220.44 = 1,231.66 : x
  2. Step 2: Convert to fraction form
    1,608.77/2,220.44 = 1,231.66/x
  3. Step 3: Cross multiply
    1,608.77x = 2,220.44 × 1,231.66
  4. Step 4: Simplify right side
    1,608.77x = 2,734,827.13
  5. Step 5: Solve for x
    x = 2,734,827.13/1,608.77
  6. Step 6: Final answer
    x = 1,699.95

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.