Home / 5,125.72-7,106.10-4,945.54

Finding the Fourth Proportional to 5,125.72, 7,106.10 and 4,945.54

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Solution

The fourth proportional to 5,125.72, 7,106.10 and 4,945.54 is: 6,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.72 : 7,106.10 = 4,945.54 : x
  2. Step 2: Convert to fraction form
    5,125.72/7,106.10 = 4,945.54/x
  3. Step 3: Cross multiply
    5,125.72x = 7,106.10 × 4,945.54
  4. Step 4: Simplify right side
    5,125.72x = 35,143,501.79
  5. Step 5: Solve for x
    x = 35,143,501.79/5,125.72
  6. Step 6: Final answer
    x = 6,856.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.