Home / 4,977.28-6,869.56-2,881.41

Finding the Fourth Proportional to 4,977.28, 6,869.56 and 2,881.41

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Solution

The fourth proportional to 4,977.28, 6,869.56 and 2,881.41 is: 3,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.28 : 6,869.56 = 2,881.41 : x
  2. Step 2: Convert to fraction form
    4,977.28/6,869.56 = 2,881.41/x
  3. Step 3: Cross multiply
    4,977.28x = 6,869.56 × 2,881.41
  4. Step 4: Simplify right side
    4,977.28x = 19,793,991.32
  5. Step 5: Solve for x
    x = 19,793,991.32/4,977.28
  6. Step 6: Final answer
    x = 3,976.87

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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.