Home / 7,784.17-11,677.77-2,520.48

Finding the Fourth Proportional to 7,784.17, 11,677.77 and 2,520.48

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Solution

The fourth proportional to 7,784.17, 11,677.77 and 2,520.48 is: 3,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.17 : 11,677.77 = 2,520.48 : x
  2. Step 2: Convert to fraction form
    7,784.17/11,677.77 = 2,520.48/x
  3. Step 3: Cross multiply
    7,784.17x = 11,677.77 × 2,520.48
  4. Step 4: Simplify right side
    7,784.17x = 29,433,629.52
  5. Step 5: Solve for x
    x = 29,433,629.52/7,784.17
  6. Step 6: Final answer
    x = 3,781.22

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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.