Home / 7,091.22-10,638.24-2,931.84

Finding the Fourth Proportional to 7,091.22, 10,638.24 and 2,931.84

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Solution

The fourth proportional to 7,091.22, 10,638.24 and 2,931.84 is: 4,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.22 : 10,638.24 = 2,931.84 : x
  2. Step 2: Convert to fraction form
    7,091.22/10,638.24 = 2,931.84/x
  3. Step 3: Cross multiply
    7,091.22x = 10,638.24 × 2,931.84
  4. Step 4: Simplify right side
    7,091.22x = 31,189,617.56
  5. Step 5: Solve for x
    x = 31,189,617.56/7,091.22
  6. Step 6: Final answer
    x = 4,398.34

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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.