Home / 5,921.19-8,172.68-3,562.88

Finding the Fourth Proportional to 5,921.19, 8,172.68 and 3,562.88

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Solution

The fourth proportional to 5,921.19, 8,172.68 and 3,562.88 is: 4,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.19 : 8,172.68 = 3,562.88 : x
  2. Step 2: Convert to fraction form
    5,921.19/8,172.68 = 3,562.88/x
  3. Step 3: Cross multiply
    5,921.19x = 8,172.68 × 3,562.88
  4. Step 4: Simplify right side
    5,921.19x = 29,118,219.44
  5. Step 5: Solve for x
    x = 29,118,219.44/5,921.19
  6. Step 6: Final answer
    x = 4,917.63

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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.