Home / 5,921.56-8,172.39-4,426.91

Finding the Fourth Proportional to 5,921.56, 8,172.39 and 4,426.91

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Solution

The fourth proportional to 5,921.56, 8,172.39 and 4,426.91 is: 6,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.56 : 8,172.39 = 4,426.91 : x
  2. Step 2: Convert to fraction form
    5,921.56/8,172.39 = 4,426.91/x
  3. Step 3: Cross multiply
    5,921.56x = 8,172.39 × 4,426.91
  4. Step 4: Simplify right side
    5,921.56x = 36,178,435.01
  5. Step 5: Solve for x
    x = 36,178,435.01/5,921.56
  6. Step 6: Final answer
    x = 6,109.61

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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.