Home / 1,511.00-2,086.75-1,040.11

Finding the Fourth Proportional to 1,511.00, 2,086.75 and 1,040.11

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Solution

The fourth proportional to 1,511.00, 2,086.75 and 1,040.11 is: 1,436.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.00 : 2,086.75 = 1,040.11 : x
  2. Step 2: Convert to fraction form
    1,511.00/2,086.75 = 1,040.11/x
  3. Step 3: Cross multiply
    1,511.00x = 2,086.75 × 1,040.11
  4. Step 4: Simplify right side
    1,511.00x = 2,170,439.11
  5. Step 5: Solve for x
    x = 2,170,439.11/1,511.00
  6. Step 6: Final answer
    x = 1,436.43

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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.