Home / 6,439.38-8,886.50-3,606.85

Finding the Fourth Proportional to 6,439.38, 8,886.50 and 3,606.85

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Solution

The fourth proportional to 6,439.38, 8,886.50 and 3,606.85 is: 4,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.38 : 8,886.50 = 3,606.85 : x
  2. Step 2: Convert to fraction form
    6,439.38/8,886.50 = 3,606.85/x
  3. Step 3: Cross multiply
    6,439.38x = 8,886.50 × 3,606.85
  4. Step 4: Simplify right side
    6,439.38x = 32,052,272.53
  5. Step 5: Solve for x
    x = 32,052,272.53/6,439.38
  6. Step 6: Final answer
    x = 4,977.54

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1.5x scale

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.