Home / 5,639.08-8,455.60-3,141.04

Finding the Fourth Proportional to 5,639.08, 8,455.60 and 3,141.04

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Solution

The fourth proportional to 5,639.08, 8,455.60 and 3,141.04 is: 4,709.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.08 : 8,455.60 = 3,141.04 : x
  2. Step 2: Convert to fraction form
    5,639.08/8,455.60 = 3,141.04/x
  3. Step 3: Cross multiply
    5,639.08x = 8,455.60 × 3,141.04
  4. Step 4: Simplify right side
    5,639.08x = 26,559,377.82
  5. Step 5: Solve for x
    x = 26,559,377.82/5,639.08
  6. Step 6: Final answer
    x = 4,709.88

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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.