Home / 2,490.63-3,436.99-1,371.41

Finding the Fourth Proportional to 2,490.63, 3,436.99 and 1,371.41

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Solution

The fourth proportional to 2,490.63, 3,436.99 and 1,371.41 is: 1,892.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.63 : 3,436.99 = 1,371.41 : x
  2. Step 2: Convert to fraction form
    2,490.63/3,436.99 = 1,371.41/x
  3. Step 3: Cross multiply
    2,490.63x = 3,436.99 × 1,371.41
  4. Step 4: Simplify right side
    2,490.63x = 4,713,514.73
  5. Step 5: Solve for x
    x = 4,713,514.73/2,490.63
  6. Step 6: Final answer
    x = 1,892.50

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1.5x scale

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.