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Finding the Fourth Proportional to 6,458.84, 9,685.94 and 2,761.32

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Solution

The fourth proportional to 6,458.84, 9,685.94 and 2,761.32 is: 4,140.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.84 : 9,685.94 = 2,761.32 : x
  2. Step 2: Convert to fraction form
    6,458.84/9,685.94 = 2,761.32/x
  3. Step 3: Cross multiply
    6,458.84x = 9,685.94 × 2,761.32
  4. Step 4: Simplify right side
    6,458.84x = 26,745,979.84
  5. Step 5: Solve for x
    x = 26,745,979.84/6,458.84
  6. Step 6: Final answer
    x = 4,140.99

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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.