Home / 4,891.40-7,335.66-2,581.64

Finding the Fourth Proportional to 4,891.40, 7,335.66 and 2,581.64

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Solution

The fourth proportional to 4,891.40, 7,335.66 and 2,581.64 is: 3,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.40 : 7,335.66 = 2,581.64 : x
  2. Step 2: Convert to fraction form
    4,891.40/7,335.66 = 2,581.64/x
  3. Step 3: Cross multiply
    4,891.40x = 7,335.66 × 2,581.64
  4. Step 4: Simplify right side
    4,891.40x = 18,938,033.28
  5. Step 5: Solve for x
    x = 18,938,033.28/4,891.40
  6. Step 6: Final answer
    x = 3,871.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.