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Finding the Fourth Proportional to 6,997.89, 9,657.27 and 3,854.28

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Solution

The fourth proportional to 6,997.89, 9,657.27 and 3,854.28 is: 5,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,997.89 : 9,657.27 = 3,854.28 : x
  2. Step 2: Convert to fraction form
    6,997.89/9,657.27 = 3,854.28/x
  3. Step 3: Cross multiply
    6,997.89x = 9,657.27 × 3,854.28
  4. Step 4: Simplify right side
    6,997.89x = 37,221,822.62
  5. Step 5: Solve for x
    x = 37,221,822.62/6,997.89
  6. Step 6: Final answer
    x = 5,319.01

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1.5x scale

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.