Home / 2,420.39-3,631.13-1,324.19

Finding the Fourth Proportional to 2,420.39, 3,631.13 and 1,324.19

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Solution

The fourth proportional to 2,420.39, 3,631.13 and 1,324.19 is: 1,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.39 : 3,631.13 = 1,324.19 : x
  2. Step 2: Convert to fraction form
    2,420.39/3,631.13 = 1,324.19/x
  3. Step 3: Cross multiply
    2,420.39x = 3,631.13 × 1,324.19
  4. Step 4: Simplify right side
    2,420.39x = 4,808,306.03
  5. Step 5: Solve for x
    x = 4,808,306.03/2,420.39
  6. Step 6: Final answer
    x = 1,986.58

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