Home / 5,257.84-7,886.76-2,661.52

Finding the Fourth Proportional to 5,257.84, 7,886.76 and 2,661.52

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Solution

The fourth proportional to 5,257.84, 7,886.76 and 2,661.52 is: 3,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.84 : 7,886.76 = 2,661.52 : x
  2. Step 2: Convert to fraction form
    5,257.84/7,886.76 = 2,661.52/x
  3. Step 3: Cross multiply
    5,257.84x = 7,886.76 × 2,661.52
  4. Step 4: Simplify right side
    5,257.84x = 20,990,769.48
  5. Step 5: Solve for x
    x = 20,990,769.48/5,257.84
  6. Step 6: Final answer
    x = 3,992.28

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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.