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Finding the Fourth Proportional to 6,477.26, 8,938.42 and 3,644.79

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Solution

The fourth proportional to 6,477.26, 8,938.42 and 3,644.79 is: 5,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477.26 : 8,938.42 = 3,644.79 : x
  2. Step 2: Convert to fraction form
    6,477.26/8,938.42 = 3,644.79/x
  3. Step 3: Cross multiply
    6,477.26x = 8,938.42 × 3,644.79
  4. Step 4: Simplify right side
    6,477.26x = 32,578,621.20
  5. Step 5: Solve for x
    x = 32,578,621.20/6,477.26
  6. Step 6: Final answer
    x = 5,029.70

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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.