Home / 5,511-8,264.46-1,812.15

Finding the Fourth Proportional to 5,511, 8,264.46 and 1,812.15

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Solution

The fourth proportional to 5,511, 8,264.46 and 1,812.15 is: 2,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511 : 8,264.46 = 1,812.15 : x
  2. Step 2: Convert to fraction form
    5,511/8,264.46 = 1,812.15/x
  3. Step 3: Cross multiply
    5,511x = 8,264.46 × 1,812.15
  4. Step 4: Simplify right side
    5,511x = 14,976,441.19
  5. Step 5: Solve for x
    x = 14,976,441.19/5,511
  6. Step 6: Final answer
    x = 2,717.55

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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.