Home / 1,511.15-2,265.79-1,382.23

Finding the Fourth Proportional to 1,511.15, 2,265.79 and 1,382.23

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Solution

The fourth proportional to 1,511.15, 2,265.79 and 1,382.23 is: 2,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.15 : 2,265.79 = 1,382.23 : x
  2. Step 2: Convert to fraction form
    1,511.15/2,265.79 = 1,382.23/x
  3. Step 3: Cross multiply
    1,511.15x = 2,265.79 × 1,382.23
  4. Step 4: Simplify right side
    1,511.15x = 3,131,832.13
  5. Step 5: Solve for x
    x = 3,131,832.13/1,511.15
  6. Step 6: Final answer
    x = 2,072.49

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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.