Home / 1,499.15-2,248.39-403.61

Finding the Fourth Proportional to 1,499.15, 2,248.39 and 403.61

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Solution

The fourth proportional to 1,499.15, 2,248.39 and 403.61 is: 605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.15 : 2,248.39 = 403.61 : x
  2. Step 2: Convert to fraction form
    1,499.15/2,248.39 = 403.61/x
  3. Step 3: Cross multiply
    1,499.15x = 2,248.39 × 403.61
  4. Step 4: Simplify right side
    1,499.15x = 907,460.44
  5. Step 5: Solve for x
    x = 907,460.44/1,499.15
  6. Step 6: Final answer
    x = 605.32

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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.