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Finding the Fourth Proportional to 6,403.48, 8,836.17 and 4,725.79

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Solution

The fourth proportional to 6,403.48, 8,836.17 and 4,725.79 is: 6,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.48 : 8,836.17 = 4,725.79 : x
  2. Step 2: Convert to fraction form
    6,403.48/8,836.17 = 4,725.79/x
  3. Step 3: Cross multiply
    6,403.48x = 8,836.17 × 4,725.79
  4. Step 4: Simplify right side
    6,403.48x = 41,757,883.82
  5. Step 5: Solve for x
    x = 41,757,883.82/6,403.48
  6. Step 6: Final answer
    x = 6,521.12

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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.