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Finding the Fourth Proportional to 6,381.02, 8,810.16 and 5,204.90

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Solution

The fourth proportional to 6,381.02, 8,810.16 and 5,204.90 is: 7,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.02 : 8,810.16 = 5,204.90 : x
  2. Step 2: Convert to fraction form
    6,381.02/8,810.16 = 5,204.90/x
  3. Step 3: Cross multiply
    6,381.02x = 8,810.16 × 5,204.90
  4. Step 4: Simplify right side
    6,381.02x = 45,856,001.78
  5. Step 5: Solve for x
    x = 45,856,001.78/6,381.02
  6. Step 6: Final answer
    x = 7,186.31

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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.