Home / 3,927.92-5,418.27-2,355.10

Finding the Fourth Proportional to 3,927.92, 5,418.27 and 2,355.10

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Solution

The fourth proportional to 3,927.92, 5,418.27 and 2,355.10 is: 3,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.92 : 5,418.27 = 2,355.10 : x
  2. Step 2: Convert to fraction form
    3,927.92/5,418.27 = 2,355.10/x
  3. Step 3: Cross multiply
    3,927.92x = 5,418.27 × 2,355.10
  4. Step 4: Simplify right side
    3,927.92x = 12,760,567.68
  5. Step 5: Solve for x
    x = 12,760,567.68/3,927.92
  6. Step 6: Final answer
    x = 3,248.68

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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.