Home / 5,391.72-7,438.06-3,153.68

Finding the Fourth Proportional to 5,391.72, 7,438.06 and 3,153.68

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Solution

The fourth proportional to 5,391.72, 7,438.06 and 3,153.68 is: 4,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.72 : 7,438.06 = 3,153.68 : x
  2. Step 2: Convert to fraction form
    5,391.72/7,438.06 = 3,153.68/x
  3. Step 3: Cross multiply
    5,391.72x = 7,438.06 × 3,153.68
  4. Step 4: Simplify right side
    5,391.72x = 23,457,261.06
  5. Step 5: Solve for x
    x = 23,457,261.06/5,391.72
  6. Step 6: Final answer
    x = 4,350.61

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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.