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Finding the Fourth Proportional to 2,068.14, 3,101.85 and 751.62

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Solution

The fourth proportional to 2,068.14, 3,101.85 and 751.62 is: 1,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.14 : 3,101.85 = 751.62 : x
  2. Step 2: Convert to fraction form
    2,068.14/3,101.85 = 751.62/x
  3. Step 3: Cross multiply
    2,068.14x = 3,101.85 × 751.62
  4. Step 4: Simplify right side
    2,068.14x = 2,331,412.50
  5. Step 5: Solve for x
    x = 2,331,412.50/2,068.14
  6. Step 6: Final answer
    x = 1,127.30

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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.