Home / 5,511.29-8,267.79-1,812.66

Finding the Fourth Proportional to 5,511.29, 8,267.79 and 1,812.66

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Solution

The fourth proportional to 5,511.29, 8,267.79 and 1,812.66 is: 2,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.29 : 8,267.79 = 1,812.66 : x
  2. Step 2: Convert to fraction form
    5,511.29/8,267.79 = 1,812.66/x
  3. Step 3: Cross multiply
    5,511.29x = 8,267.79 × 1,812.66
  4. Step 4: Simplify right side
    5,511.29x = 14,986,692.22
  5. Step 5: Solve for x
    x = 14,986,692.22/5,511.29
  6. Step 6: Final answer
    x = 2,719.27

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1.5x scale

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.