Home / 5,389.22-7,435.85-3,149.97

Finding the Fourth Proportional to 5,389.22, 7,435.85 and 3,149.97

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Solution

The fourth proportional to 5,389.22, 7,435.85 and 3,149.97 is: 4,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.22 : 7,435.85 = 3,149.97 : x
  2. Step 2: Convert to fraction form
    5,389.22/7,435.85 = 3,149.97/x
  3. Step 3: Cross multiply
    5,389.22x = 7,435.85 × 3,149.97
  4. Step 4: Simplify right side
    5,389.22x = 23,422,688.67
  5. Step 5: Solve for x
    x = 23,422,688.67/5,389.22
  6. Step 6: Final answer
    x = 4,346.22

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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.