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Finding the Fourth Proportional to 6,278.49, 8,664.98 and 3,888.27

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Solution

The fourth proportional to 6,278.49, 8,664.98 and 3,888.27 is: 5,366.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.49 : 8,664.98 = 3,888.27 : x
  2. Step 2: Convert to fraction form
    6,278.49/8,664.98 = 3,888.27/x
  3. Step 3: Cross multiply
    6,278.49x = 8,664.98 × 3,888.27
  4. Step 4: Simplify right side
    6,278.49x = 33,691,762.34
  5. Step 5: Solve for x
    x = 33,691,762.34/6,278.49
  6. Step 6: Final answer
    x = 5,366.22

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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.