Home / 3,924.84-5,416.40-2,156.50

Finding the Fourth Proportional to 3,924.84, 5,416.40 and 2,156.50

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Solution

The fourth proportional to 3,924.84, 5,416.40 and 2,156.50 is: 2,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.84 : 5,416.40 = 2,156.50 : x
  2. Step 2: Convert to fraction form
    3,924.84/5,416.40 = 2,156.50/x
  3. Step 3: Cross multiply
    3,924.84x = 5,416.40 × 2,156.50
  4. Step 4: Simplify right side
    3,924.84x = 11,680,466.60
  5. Step 5: Solve for x
    x = 11,680,466.60/3,924.84
  6. Step 6: Final answer
    x = 2,976.04

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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.