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Finding the Fourth Proportional to 1,511.46, 2,266.47 and 537.21

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Solution

The fourth proportional to 1,511.46, 2,266.47 and 537.21 is: 805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.46 : 2,266.47 = 537.21 : x
  2. Step 2: Convert to fraction form
    1,511.46/2,266.47 = 537.21/x
  3. Step 3: Cross multiply
    1,511.46x = 2,266.47 × 537.21
  4. Step 4: Simplify right side
    1,511.46x = 1,217,570.35
  5. Step 5: Solve for x
    x = 1,217,570.35/1,511.46
  6. Step 6: Final answer
    x = 805.56

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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.