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Finding the Fourth Proportional to 2,046.87, 3,070 and 748.34

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Solution

The fourth proportional to 2,046.87, 3,070 and 748.34 is: 1,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,046.87 : 3,070 = 748.34 : x
  2. Step 2: Convert to fraction form
    2,046.87/3,070 = 748.34/x
  3. Step 3: Cross multiply
    2,046.87x = 3,070 × 748.34
  4. Step 4: Simplify right side
    2,046.87x = 2,297,403.80
  5. Step 5: Solve for x
    x = 2,297,403.80/2,046.87
  6. Step 6: Final answer
    x = 1,122.40

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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.