Home / 3,513.81-5,270.98-1,322.49

Finding the Fourth Proportional to 3,513.81, 5,270.98 and 1,322.49

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Solution

The fourth proportional to 3,513.81, 5,270.98 and 1,322.49 is: 1,983.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.81 : 5,270.98 = 1,322.49 : x
  2. Step 2: Convert to fraction form
    3,513.81/5,270.98 = 1,322.49/x
  3. Step 3: Cross multiply
    3,513.81x = 5,270.98 × 1,322.49
  4. Step 4: Simplify right side
    3,513.81x = 6,970,818.34
  5. Step 5: Solve for x
    x = 6,970,818.34/3,513.81
  6. Step 6: Final answer
    x = 1,983.83

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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.