Home / 5,670.63-7,820.28-3,755.66

Finding the Fourth Proportional to 5,670.63, 7,820.28 and 3,755.66

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Solution

The fourth proportional to 5,670.63, 7,820.28 and 3,755.66 is: 5,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.63 : 7,820.28 = 3,755.66 : x
  2. Step 2: Convert to fraction form
    5,670.63/7,820.28 = 3,755.66/x
  3. Step 3: Cross multiply
    5,670.63x = 7,820.28 × 3,755.66
  4. Step 4: Simplify right side
    5,670.63x = 29,370,273.68
  5. Step 5: Solve for x
    x = 29,370,273.68/5,670.63
  6. Step 6: Final answer
    x = 5,179.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.