Home / 3,631.52-5,448.08-1,323

Finding the Fourth Proportional to 3,631.52, 5,448.08 and 1,323

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Solution

The fourth proportional to 3,631.52, 5,448.08 and 1,323 is: 1,984.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.52 : 5,448.08 = 1,323 : x
  2. Step 2: Convert to fraction form
    3,631.52/5,448.08 = 1,323/x
  3. Step 3: Cross multiply
    3,631.52x = 5,448.08 × 1,323
  4. Step 4: Simplify right side
    3,631.52x = 7,207,809.84
  5. Step 5: Solve for x
    x = 7,207,809.84/3,631.52
  6. Step 6: Final answer
    x = 1,984.79

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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.