Home / 3,629.84-5,443.36-1,984.08

Finding the Fourth Proportional to 3,629.84, 5,443.36 and 1,984.08

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Solution

The fourth proportional to 3,629.84, 5,443.36 and 1,984.08 is: 2,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.84 : 5,443.36 = 1,984.08 : x
  2. Step 2: Convert to fraction form
    3,629.84/5,443.36 = 1,984.08/x
  3. Step 3: Cross multiply
    3,629.84x = 5,443.36 × 1,984.08
  4. Step 4: Simplify right side
    3,629.84x = 10,800,061.71
  5. Step 5: Solve for x
    x = 10,800,061.71/3,629.84
  6. Step 6: Final answer
    x = 2,975.35

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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.