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Finding the Fourth Proportional to 1,567.45, 2,351.85 and 797.95

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Solution

The fourth proportional to 1,567.45, 2,351.85 and 797.95 is: 1,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.45 : 2,351.85 = 797.95 : x
  2. Step 2: Convert to fraction form
    1,567.45/2,351.85 = 797.95/x
  3. Step 3: Cross multiply
    1,567.45x = 2,351.85 × 797.95
  4. Step 4: Simplify right side
    1,567.45x = 1,876,658.71
  5. Step 5: Solve for x
    x = 1,876,658.71/1,567.45
  6. Step 6: Final answer
    x = 1,197.27

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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.