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Finding the Fourth Proportional to 4,291.68, 5,919.15 and 2,800.08

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Solution

The fourth proportional to 4,291.68, 5,919.15 and 2,800.08 is: 3,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.68 : 5,919.15 = 2,800.08 : x
  2. Step 2: Convert to fraction form
    4,291.68/5,919.15 = 2,800.08/x
  3. Step 3: Cross multiply
    4,291.68x = 5,919.15 × 2,800.08
  4. Step 4: Simplify right side
    4,291.68x = 16,574,093.53
  5. Step 5: Solve for x
    x = 16,574,093.53/4,291.68
  6. Step 6: Final answer
    x = 3,861.91

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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.