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Finding the Fourth Proportional to 6,395.74, 8,827.23 and 4,039.18

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Solution

The fourth proportional to 6,395.74, 8,827.23 and 4,039.18 is: 5,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,395.74 : 8,827.23 = 4,039.18 : x
  2. Step 2: Convert to fraction form
    6,395.74/8,827.23 = 4,039.18/x
  3. Step 3: Cross multiply
    6,395.74x = 8,827.23 × 4,039.18
  4. Step 4: Simplify right side
    6,395.74x = 35,654,770.87
  5. Step 5: Solve for x
    x = 35,654,770.87/6,395.74
  6. Step 6: Final answer
    x = 5,574.77

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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.