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Finding the Fourth Proportional to 2,490, 3,436.23 and 1,371.03

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Solution

The fourth proportional to 2,490, 3,436.23 and 1,371.03 is: 1,892.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490 : 3,436.23 = 1,371.03 : x
  2. Step 2: Convert to fraction form
    2,490/3,436.23 = 1,371.03/x
  3. Step 3: Cross multiply
    2,490x = 3,436.23 × 1,371.03
  4. Step 4: Simplify right side
    2,490x = 4,711,174.42
  5. Step 5: Solve for x
    x = 4,711,174.42/2,490
  6. Step 6: Final answer
    x = 1,892.04

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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.