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Finding the Fourth Proportional to 6,459.65, 8,918.00 and 4,338.97

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Solution

The fourth proportional to 6,459.65, 8,918.00 and 4,338.97 is: 5,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.65 : 8,918.00 = 4,338.97 : x
  2. Step 2: Convert to fraction form
    6,459.65/8,918.00 = 4,338.97/x
  3. Step 3: Cross multiply
    6,459.65x = 8,918.00 × 4,338.97
  4. Step 4: Simplify right side
    6,459.65x = 38,694,906.74
  5. Step 5: Solve for x
    x = 38,694,906.74/6,459.65
  6. Step 6: Final answer
    x = 5,990.25

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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.