Home / 1,225.14-1,837.98-403.67

Finding the Fourth Proportional to 1,225.14, 1,837.98 and 403.67

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Solution

The fourth proportional to 1,225.14, 1,837.98 and 403.67 is: 605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.14 : 1,837.98 = 403.67 : x
  2. Step 2: Convert to fraction form
    1,225.14/1,837.98 = 403.67/x
  3. Step 3: Cross multiply
    1,225.14x = 1,837.98 × 403.67
  4. Step 4: Simplify right side
    1,225.14x = 741,937.39
  5. Step 5: Solve for x
    x = 741,937.39/1,225.14
  6. Step 6: Final answer
    x = 605.59

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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.