Home / 5,631.22-8,440.96-2,118.81

Finding the Fourth Proportional to 5,631.22, 8,440.96 and 2,118.81

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Solution

The fourth proportional to 5,631.22, 8,440.96 and 2,118.81 is: 3,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.22 : 8,440.96 = 2,118.81 : x
  2. Step 2: Convert to fraction form
    5,631.22/8,440.96 = 2,118.81/x
  3. Step 3: Cross multiply
    5,631.22x = 8,440.96 × 2,118.81
  4. Step 4: Simplify right side
    5,631.22x = 17,884,790.46
  5. Step 5: Solve for x
    x = 17,884,790.46/5,631.22
  6. Step 6: Final answer
    x = 3,176.01

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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.