Home / 1,490.03-2,234.94-394.37

Finding the Fourth Proportional to 1,490.03, 2,234.94 and 394.37

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Solution

The fourth proportional to 1,490.03, 2,234.94 and 394.37 is: 591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.03 : 2,234.94 = 394.37 : x
  2. Step 2: Convert to fraction form
    1,490.03/2,234.94 = 394.37/x
  3. Step 3: Cross multiply
    1,490.03x = 2,234.94 × 394.37
  4. Step 4: Simplify right side
    1,490.03x = 881,393.29
  5. Step 5: Solve for x
    x = 881,393.29/1,490.03
  6. Step 6: Final answer
    x = 591.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.