Home / 1,443.18-2,164.66-403.10

Finding the Fourth Proportional to 1,443.18, 2,164.66 and 403.10

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Solution

The fourth proportional to 1,443.18, 2,164.66 and 403.10 is: 604.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.18 : 2,164.66 = 403.10 : x
  2. Step 2: Convert to fraction form
    1,443.18/2,164.66 = 403.10/x
  3. Step 3: Cross multiply
    1,443.18x = 2,164.66 × 403.10
  4. Step 4: Simplify right side
    1,443.18x = 872,570.73
  5. Step 5: Solve for x
    x = 872,570.73/1,443.18
  6. Step 6: Final answer
    x = 604.62

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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.