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Finding the Fourth Proportional to 6,381.54, 8,803.28 and 4,144.66

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Solution

The fourth proportional to 6,381.54, 8,803.28 and 4,144.66 is: 5,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.54 : 8,803.28 = 4,144.66 : x
  2. Step 2: Convert to fraction form
    6,381.54/8,803.28 = 4,144.66/x
  3. Step 3: Cross multiply
    6,381.54x = 8,803.28 × 4,144.66
  4. Step 4: Simplify right side
    6,381.54x = 36,486,590.84
  5. Step 5: Solve for x
    x = 36,486,590.84/6,381.54
  6. Step 6: Final answer
    x = 5,717.52

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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.