Home / 2,490.25-3,436.55-1,442.92

Finding the Fourth Proportional to 2,490.25, 3,436.55 and 1,442.92

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Solution

The fourth proportional to 2,490.25, 3,436.55 and 1,442.92 is: 1,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.25 : 3,436.55 = 1,442.92 : x
  2. Step 2: Convert to fraction form
    2,490.25/3,436.55 = 1,442.92/x
  3. Step 3: Cross multiply
    2,490.25x = 3,436.55 × 1,442.92
  4. Step 4: Simplify right side
    2,490.25x = 4,958,666.73
  5. Step 5: Solve for x
    x = 4,958,666.73/2,490.25
  6. Step 6: Final answer
    x = 1,991.23

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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.