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Finding the Fourth Proportional to 6,381.98, 8,807.05 and 3,549.33

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Solution

The fourth proportional to 6,381.98, 8,807.05 and 3,549.33 is: 4,898.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.98 : 8,807.05 = 3,549.33 : x
  2. Step 2: Convert to fraction form
    6,381.98/8,807.05 = 3,549.33/x
  3. Step 3: Cross multiply
    6,381.98x = 8,807.05 × 3,549.33
  4. Step 4: Simplify right side
    6,381.98x = 31,259,126.78
  5. Step 5: Solve for x
    x = 31,259,126.78/6,381.98
  6. Step 6: Final answer
    x = 4,898.03

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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.