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Finding the Fourth Proportional to 2,393, 3,302.63 and 1,508.78

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Solution

The fourth proportional to 2,393, 3,302.63 and 1,508.78 is: 2,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393 : 3,302.63 = 1,508.78 : x
  2. Step 2: Convert to fraction form
    2,393/3,302.63 = 1,508.78/x
  3. Step 3: Cross multiply
    2,393x = 3,302.63 × 1,508.78
  4. Step 4: Simplify right side
    2,393x = 4,982,942.09
  5. Step 5: Solve for x
    x = 4,982,942.09/2,393
  6. Step 6: Final answer
    x = 2,082.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.