Home / 3,669.79-5,503.28-1,329.11

Finding the Fourth Proportional to 3,669.79, 5,503.28 and 1,329.11

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Solution

The fourth proportional to 3,669.79, 5,503.28 and 1,329.11 is: 1,993.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.79 : 5,503.28 = 1,329.11 : x
  2. Step 2: Convert to fraction form
    3,669.79/5,503.28 = 1,329.11/x
  3. Step 3: Cross multiply
    3,669.79x = 5,503.28 × 1,329.11
  4. Step 4: Simplify right side
    3,669.79x = 7,314,430.32
  5. Step 5: Solve for x
    x = 7,314,430.32/3,669.79
  6. Step 6: Final answer
    x = 1,993.15

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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.