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Finding the Fourth Proportional to 1,617.66, 2,230.60 and 1,092.78

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Solution

The fourth proportional to 1,617.66, 2,230.60 and 1,092.78 is: 1,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.66 : 2,230.60 = 1,092.78 : x
  2. Step 2: Convert to fraction form
    1,617.66/2,230.60 = 1,092.78/x
  3. Step 3: Cross multiply
    1,617.66x = 2,230.60 × 1,092.78
  4. Step 4: Simplify right side
    1,617.66x = 2,437,555.07
  5. Step 5: Solve for x
    x = 2,437,555.07/1,617.66
  6. Step 6: Final answer
    x = 1,506.84

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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.