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Finding the Fourth Proportional to 2,338.56, 3,506.84 and 876.70

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Solution

The fourth proportional to 2,338.56, 3,506.84 and 876.70 is: 1,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.56 : 3,506.84 = 876.70 : x
  2. Step 2: Convert to fraction form
    2,338.56/3,506.84 = 876.70/x
  3. Step 3: Cross multiply
    2,338.56x = 3,506.84 × 876.70
  4. Step 4: Simplify right side
    2,338.56x = 3,074,446.63
  5. Step 5: Solve for x
    x = 3,074,446.63/2,338.56
  6. Step 6: Final answer
    x = 1,314.68

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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.