Home / 4,313.61-6,469.83-1,391.55

Finding the Fourth Proportional to 4,313.61, 6,469.83 and 1,391.55

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Solution

The fourth proportional to 4,313.61, 6,469.83 and 1,391.55 is: 2,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,313.61 : 6,469.83 = 1,391.55 : x
  2. Step 2: Convert to fraction form
    4,313.61/6,469.83 = 1,391.55/x
  3. Step 3: Cross multiply
    4,313.61x = 6,469.83 × 1,391.55
  4. Step 4: Simplify right side
    4,313.61x = 9,003,091.94
  5. Step 5: Solve for x
    x = 9,003,091.94/4,313.61
  6. Step 6: Final answer
    x = 2,087.14

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1.5x scale

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.