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Finding the Fourth Proportional to 6,318.19, 8,719.21 and 3,666.66

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Solution

The fourth proportional to 6,318.19, 8,719.21 and 3,666.66 is: 5,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.19 : 8,719.21 = 3,666.66 : x
  2. Step 2: Convert to fraction form
    6,318.19/8,719.21 = 3,666.66/x
  3. Step 3: Cross multiply
    6,318.19x = 8,719.21 × 3,666.66
  4. Step 4: Simplify right side
    6,318.19x = 31,970,378.54
  5. Step 5: Solve for x
    x = 31,970,378.54/6,318.19
  6. Step 6: Final answer
    x = 5,060.05

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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.