Home / 3,511.70-5,264.49-1,319.84

Finding the Fourth Proportional to 3,511.70, 5,264.49 and 1,319.84

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Solution

The fourth proportional to 3,511.70, 5,264.49 and 1,319.84 is: 1,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.70 : 5,264.49 = 1,319.84 : x
  2. Step 2: Convert to fraction form
    3,511.70/5,264.49 = 1,319.84/x
  3. Step 3: Cross multiply
    3,511.70x = 5,264.49 × 1,319.84
  4. Step 4: Simplify right side
    3,511.70x = 6,948,284.48
  5. Step 5: Solve for x
    x = 6,948,284.48/3,511.70
  6. Step 6: Final answer
    x = 1,978.61

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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.