Home / 6,429.68-8,873.88-4,072.04

Finding the Fourth Proportional to 6,429.68, 8,873.88 and 4,072.04

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Solution

The fourth proportional to 6,429.68, 8,873.88 and 4,072.04 is: 5,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.68 : 8,873.88 = 4,072.04 : x
  2. Step 2: Convert to fraction form
    6,429.68/8,873.88 = 4,072.04/x
  3. Step 3: Cross multiply
    6,429.68x = 8,873.88 × 4,072.04
  4. Step 4: Simplify right side
    6,429.68x = 36,134,794.32
  5. Step 5: Solve for x
    x = 36,134,794.32/6,429.68
  6. Step 6: Final answer
    x = 5,620.00

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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.