Home / 6,439.42-8,886.31-3,644.92

Finding the Fourth Proportional to 6,439.42, 8,886.31 and 3,644.92

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Solution

The fourth proportional to 6,439.42, 8,886.31 and 3,644.92 is: 5,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.42 : 8,886.31 = 3,644.92 : x
  2. Step 2: Convert to fraction form
    6,439.42/8,886.31 = 3,644.92/x
  3. Step 3: Cross multiply
    6,439.42x = 8,886.31 × 3,644.92
  4. Step 4: Simplify right side
    6,439.42x = 32,389,889.05
  5. Step 5: Solve for x
    x = 32,389,889.05/6,439.42
  6. Step 6: Final answer
    x = 5,029.94

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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.