Home / 5,411.26-8,120.49-1,901.26

Finding the Fourth Proportional to 5,411.26, 8,120.49 and 1,901.26

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Solution

The fourth proportional to 5,411.26, 8,120.49 and 1,901.26 is: 2,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.26 : 8,120.49 = 1,901.26 : x
  2. Step 2: Convert to fraction form
    5,411.26/8,120.49 = 1,901.26/x
  3. Step 3: Cross multiply
    5,411.26x = 8,120.49 × 1,901.26
  4. Step 4: Simplify right side
    5,411.26x = 15,439,162.82
  5. Step 5: Solve for x
    x = 15,439,162.82/5,411.26
  6. Step 6: Final answer
    x = 2,853.15

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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.