Home / 3,927.88-5,420.94-2,356.84

Finding the Fourth Proportional to 3,927.88, 5,420.94 and 2,356.84

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Solution

The fourth proportional to 3,927.88, 5,420.94 and 2,356.84 is: 3,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.88 : 5,420.94 = 2,356.84 : x
  2. Step 2: Convert to fraction form
    3,927.88/5,420.94 = 2,356.84/x
  3. Step 3: Cross multiply
    3,927.88x = 5,420.94 × 2,356.84
  4. Step 4: Simplify right side
    3,927.88x = 12,776,288.23
  5. Step 5: Solve for x
    x = 12,776,288.23/3,927.88
  6. Step 6: Final answer
    x = 3,252.72

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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.