Home / 2,490.68-3,437.10-1,371.60

Finding the Fourth Proportional to 2,490.68, 3,437.10 and 1,371.60

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Solution

The fourth proportional to 2,490.68, 3,437.10 and 1,371.60 is: 1,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.68 : 3,437.10 = 1,371.60 : x
  2. Step 2: Convert to fraction form
    2,490.68/3,437.10 = 1,371.60/x
  3. Step 3: Cross multiply
    2,490.68x = 3,437.10 × 1,371.60
  4. Step 4: Simplify right side
    2,490.68x = 4,714,326.36
  5. Step 5: Solve for x
    x = 4,714,326.36/2,490.68
  6. Step 6: Final answer
    x = 1,892.78

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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.