Home / 3,629.26-5,443.87-1,320.76

Finding the Fourth Proportional to 3,629.26, 5,443.87 and 1,320.76

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Solution

The fourth proportional to 3,629.26, 5,443.87 and 1,320.76 is: 1,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.26 : 5,443.87 = 1,320.76 : x
  2. Step 2: Convert to fraction form
    3,629.26/5,443.87 = 1,320.76/x
  3. Step 3: Cross multiply
    3,629.26x = 5,443.87 × 1,320.76
  4. Step 4: Simplify right side
    3,629.26x = 7,190,045.74
  5. Step 5: Solve for x
    x = 7,190,045.74/3,629.26
  6. Step 6: Final answer
    x = 1,981.13

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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.