Home / 1,517.20-2,093.84-845.11

Finding the Fourth Proportional to 1,517.20, 2,093.84 and 845.11

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Solution

The fourth proportional to 1,517.20, 2,093.84 and 845.11 is: 1,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.20 : 2,093.84 = 845.11 : x
  2. Step 2: Convert to fraction form
    1,517.20/2,093.84 = 845.11/x
  3. Step 3: Cross multiply
    1,517.20x = 2,093.84 × 845.11
  4. Step 4: Simplify right side
    1,517.20x = 1,769,525.12
  5. Step 5: Solve for x
    x = 1,769,525.12/1,517.20
  6. Step 6: Final answer
    x = 1,166.31

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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.