Home / 3,929.58-5,425.92-2,359.80

Finding the Fourth Proportional to 3,929.58, 5,425.92 and 2,359.80

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Solution

The fourth proportional to 3,929.58, 5,425.92 and 2,359.80 is: 3,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.58 : 5,425.92 = 2,359.80 : x
  2. Step 2: Convert to fraction form
    3,929.58/5,425.92 = 2,359.80/x
  3. Step 3: Cross multiply
    3,929.58x = 5,425.92 × 2,359.80
  4. Step 4: Simplify right side
    3,929.58x = 12,804,086.02
  5. Step 5: Solve for x
    x = 12,804,086.02/3,929.58
  6. Step 6: Final answer
    x = 3,258.39

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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.