Home / 7,139.37-10,709.06-4,170.54

Finding the Fourth Proportional to 7,139.37, 10,709.06 and 4,170.54

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Solution

The fourth proportional to 7,139.37, 10,709.06 and 4,170.54 is: 6,255.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.37 : 10,709.06 = 4,170.54 : x
  2. Step 2: Convert to fraction form
    7,139.37/10,709.06 = 4,170.54/x
  3. Step 3: Cross multiply
    7,139.37x = 10,709.06 × 4,170.54
  4. Step 4: Simplify right side
    7,139.37x = 44,662,542.24
  5. Step 5: Solve for x
    x = 44,662,542.24/7,139.37
  6. Step 6: Final answer
    x = 6,255.81

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Similar ratio
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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.