Home / 1,511.53-2,084.11-1,371.67

Finding the Fourth Proportional to 1,511.53, 2,084.11 and 1,371.67

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Solution

The fourth proportional to 1,511.53, 2,084.11 and 1,371.67 is: 1,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.53 : 2,084.11 = 1,371.67 : x
  2. Step 2: Convert to fraction form
    1,511.53/2,084.11 = 1,371.67/x
  3. Step 3: Cross multiply
    1,511.53x = 2,084.11 × 1,371.67
  4. Step 4: Simplify right side
    1,511.53x = 2,858,711.16
  5. Step 5: Solve for x
    x = 2,858,711.16/1,511.53
  6. Step 6: Final answer
    x = 1,891.27

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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.