Home / 3,631.56-5,448.12-1,323

Finding the Fourth Proportional to 3,631.56, 5,448.12 and 1,323

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Solution

The fourth proportional to 3,631.56, 5,448.12 and 1,323 is: 1,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.56 : 5,448.12 = 1,323 : x
  2. Step 2: Convert to fraction form
    3,631.56/5,448.12 = 1,323/x
  3. Step 3: Cross multiply
    3,631.56x = 5,448.12 × 1,323
  4. Step 4: Simplify right side
    3,631.56x = 7,207,862.76
  5. Step 5: Solve for x
    x = 7,207,862.76/3,631.56
  6. Step 6: Final answer
    x = 1,984.78

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1.5x scale

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.