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Finding the Fourth Proportional to 4,479.01, 6,715.90 and 1,705.87

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Solution

The fourth proportional to 4,479.01, 6,715.90 and 1,705.87 is: 2,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.01 : 6,715.90 = 1,705.87 : x
  2. Step 2: Convert to fraction form
    4,479.01/6,715.90 = 1,705.87/x
  3. Step 3: Cross multiply
    4,479.01x = 6,715.90 × 1,705.87
  4. Step 4: Simplify right side
    4,479.01x = 11,456,452.33
  5. Step 5: Solve for x
    x = 11,456,452.33/4,479.01
  6. Step 6: Final answer
    x = 2,557.81

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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.