Home / 4,825.49-6,660.20-3,143.88

Finding the Fourth Proportional to 4,825.49, 6,660.20 and 3,143.88

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Solution

The fourth proportional to 4,825.49, 6,660.20 and 3,143.88 is: 4,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,825.49 : 6,660.20 = 3,143.88 : x
  2. Step 2: Convert to fraction form
    4,825.49/6,660.20 = 3,143.88/x
  3. Step 3: Cross multiply
    4,825.49x = 6,660.20 × 3,143.88
  4. Step 4: Simplify right side
    4,825.49x = 20,938,877.44
  5. Step 5: Solve for x
    x = 20,938,877.44/4,825.49
  6. Step 6: Final answer
    x = 4,339.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.