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Finding the Fourth Proportional to 3,151.51, 4,727.26 and 959.95

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Solution

The fourth proportional to 3,151.51, 4,727.26 and 959.95 is: 1,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.51 : 4,727.26 = 959.95 : x
  2. Step 2: Convert to fraction form
    3,151.51/4,727.26 = 959.95/x
  3. Step 3: Cross multiply
    3,151.51x = 4,727.26 × 959.95
  4. Step 4: Simplify right side
    3,151.51x = 4,537,940.35
  5. Step 5: Solve for x
    x = 4,537,940.35/3,151.51
  6. Step 6: Final answer
    x = 1,439.93

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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.