Home / 2,490.08-3,436.28-1,371

Finding the Fourth Proportional to 2,490.08, 3,436.28 and 1,371

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Solution

The fourth proportional to 2,490.08, 3,436.28 and 1,371 is: 1,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.08 : 3,436.28 = 1,371 : x
  2. Step 2: Convert to fraction form
    2,490.08/3,436.28 = 1,371/x
  3. Step 3: Cross multiply
    2,490.08x = 3,436.28 × 1,371
  4. Step 4: Simplify right side
    2,490.08x = 4,711,139.88
  5. Step 5: Solve for x
    x = 4,711,139.88/2,490.08
  6. Step 6: Final answer
    x = 1,891.96

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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.