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Finding the Fourth Proportional to 2,891.95, 4,336.71 and 1,968.01

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Solution

The fourth proportional to 2,891.95, 4,336.71 and 1,968.01 is: 2,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.95 : 4,336.71 = 1,968.01 : x
  2. Step 2: Convert to fraction form
    2,891.95/4,336.71 = 1,968.01/x
  3. Step 3: Cross multiply
    2,891.95x = 4,336.71 × 1,968.01
  4. Step 4: Simplify right side
    2,891.95x = 8,534,688.65
  5. Step 5: Solve for x
    x = 8,534,688.65/2,891.95
  6. Step 6: Final answer
    x = 2,951.19

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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.