Home / 1,225.23-1,837.92-403.17

Finding the Fourth Proportional to 1,225.23, 1,837.92 and 403.17

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Solution

The fourth proportional to 1,225.23, 1,837.92 and 403.17 is: 604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.23 : 1,837.92 = 403.17 : x
  2. Step 2: Convert to fraction form
    1,225.23/1,837.92 = 403.17/x
  3. Step 3: Cross multiply
    1,225.23x = 1,837.92 × 403.17
  4. Step 4: Simplify right side
    1,225.23x = 740,994.21
  5. Step 5: Solve for x
    x = 740,994.21/1,225.23
  6. Step 6: Final answer
    x = 604.78

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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.