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Finding the Fourth Proportional to 6,451.40, 9,677.09 and 4,259.61

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Solution

The fourth proportional to 6,451.40, 9,677.09 and 4,259.61 is: 6,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.40 : 9,677.09 = 4,259.61 : x
  2. Step 2: Convert to fraction form
    6,451.40/9,677.09 = 4,259.61/x
  3. Step 3: Cross multiply
    6,451.40x = 9,677.09 × 4,259.61
  4. Step 4: Simplify right side
    6,451.40x = 41,220,629.33
  5. Step 5: Solve for x
    x = 41,220,629.33/6,451.40
  6. Step 6: Final answer
    x = 6,389.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.