Home / 7,221.72-10,823.08-3,708.76

Finding the Fourth Proportional to 7,221.72, 10,823.08 and 3,708.76

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Solution

The fourth proportional to 7,221.72, 10,823.08 and 3,708.76 is: 5,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.72 : 10,823.08 = 3,708.76 : x
  2. Step 2: Convert to fraction form
    7,221.72/10,823.08 = 3,708.76/x
  3. Step 3: Cross multiply
    7,221.72x = 10,823.08 × 3,708.76
  4. Step 4: Simplify right side
    7,221.72x = 40,140,206.18
  5. Step 5: Solve for x
    x = 40,140,206.18/7,221.72
  6. Step 6: Final answer
    x = 5,558.26

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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.