Home / 5,108.69-7,663.48-1,820.97

Finding the Fourth Proportional to 5,108.69, 7,663.48 and 1,820.97

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Solution

The fourth proportional to 5,108.69, 7,663.48 and 1,820.97 is: 2,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.69 : 7,663.48 = 1,820.97 : x
  2. Step 2: Convert to fraction form
    5,108.69/7,663.48 = 1,820.97/x
  3. Step 3: Cross multiply
    5,108.69x = 7,663.48 × 1,820.97
  4. Step 4: Simplify right side
    5,108.69x = 13,954,962.62
  5. Step 5: Solve for x
    x = 13,954,962.62/5,108.69
  6. Step 6: Final answer
    x = 2,731.61

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1.5x scale

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.