Home / 7,725.28-11,587.83-1,881.90

Finding the Fourth Proportional to 7,725.28, 11,587.83 and 1,881.90

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Solution

The fourth proportional to 7,725.28, 11,587.83 and 1,881.90 is: 2,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.28 : 11,587.83 = 1,881.90 : x
  2. Step 2: Convert to fraction form
    7,725.28/11,587.83 = 1,881.90/x
  3. Step 3: Cross multiply
    7,725.28x = 11,587.83 × 1,881.90
  4. Step 4: Simplify right side
    7,725.28x = 21,807,137.28
  5. Step 5: Solve for x
    x = 21,807,137.28/7,725.28
  6. Step 6: Final answer
    x = 2,822.83

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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.