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Finding the Fourth Proportional to 6,848.78, 9,451.28 and 3,864.60

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Solution

The fourth proportional to 6,848.78, 9,451.28 and 3,864.60 is: 5,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,848.78 : 9,451.28 = 3,864.60 : x
  2. Step 2: Convert to fraction form
    6,848.78/9,451.28 = 3,864.60/x
  3. Step 3: Cross multiply
    6,848.78x = 9,451.28 × 3,864.60
  4. Step 4: Simplify right side
    6,848.78x = 36,525,397.37
  5. Step 5: Solve for x
    x = 36,525,397.37/6,848.78
  6. Step 6: Final answer
    x = 5,333.13

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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.