Home / 5,509.86-8,257.77-2,581.71

Finding the Fourth Proportional to 5,509.86, 8,257.77 and 2,581.71

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Solution

The fourth proportional to 5,509.86, 8,257.77 and 2,581.71 is: 3,869.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.86 : 8,257.77 = 2,581.71 : x
  2. Step 2: Convert to fraction form
    5,509.86/8,257.77 = 2,581.71/x
  3. Step 3: Cross multiply
    5,509.86x = 8,257.77 × 2,581.71
  4. Step 4: Simplify right side
    5,509.86x = 21,319,167.39
  5. Step 5: Solve for x
    x = 21,319,167.39/5,509.86
  6. Step 6: Final answer
    x = 3,869.28

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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.