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Finding the Fourth Proportional to 1,083.16, 1,625.46 and 1,011.16

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Solution

The fourth proportional to 1,083.16, 1,625.46 and 1,011.16 is: 1,517.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.16 : 1,625.46 = 1,011.16 : x
  2. Step 2: Convert to fraction form
    1,083.16/1,625.46 = 1,011.16/x
  3. Step 3: Cross multiply
    1,083.16x = 1,625.46 × 1,011.16
  4. Step 4: Simplify right side
    1,083.16x = 1,643,600.13
  5. Step 5: Solve for x
    x = 1,643,600.13/1,083.16
  6. Step 6: Final answer
    x = 1,517.41

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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.