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Finding the Fourth Proportional to 6,479.76, 9,724.49 and 4,605.42

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Solution

The fourth proportional to 6,479.76, 9,724.49 and 4,605.42 is: 6,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.76 : 9,724.49 = 4,605.42 : x
  2. Step 2: Convert to fraction form
    6,479.76/9,724.49 = 4,605.42/x
  3. Step 3: Cross multiply
    6,479.76x = 9,724.49 × 4,605.42
  4. Step 4: Simplify right side
    6,479.76x = 44,785,360.74
  5. Step 5: Solve for x
    x = 44,785,360.74/6,479.76
  6. Step 6: Final answer
    x = 6,911.58

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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.