Home / 3,545.67-5,318.81-1,353.21

Finding the Fourth Proportional to 3,545.67, 5,318.81 and 1,353.21

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Solution

The fourth proportional to 3,545.67, 5,318.81 and 1,353.21 is: 2,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.67 : 5,318.81 = 1,353.21 : x
  2. Step 2: Convert to fraction form
    3,545.67/5,318.81 = 1,353.21/x
  3. Step 3: Cross multiply
    3,545.67x = 5,318.81 × 1,353.21
  4. Step 4: Simplify right side
    3,545.67x = 7,197,466.88
  5. Step 5: Solve for x
    x = 7,197,466.88/3,545.67
  6. Step 6: Final answer
    x = 2,029.93

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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.