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Finding the Fourth Proportional to 1,511.00, 2,265.95 and 818.18

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Solution

The fourth proportional to 1,511.00, 2,265.95 and 818.18 is: 1,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.00 : 2,265.95 = 818.18 : x
  2. Step 2: Convert to fraction form
    1,511.00/2,265.95 = 818.18/x
  3. Step 3: Cross multiply
    1,511.00x = 2,265.95 × 818.18
  4. Step 4: Simplify right side
    1,511.00x = 1,853,939.55
  5. Step 5: Solve for x
    x = 1,853,939.55/1,511.00
  6. Step 6: Final answer
    x = 1,226.97

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Double scale
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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.