Home / 7,775.20-10,727.85-4,749.54

Finding the Fourth Proportional to 7,775.20, 10,727.85 and 4,749.54

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Solution

The fourth proportional to 7,775.20, 10,727.85 and 4,749.54 is: 6,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.20 : 10,727.85 = 4,749.54 : x
  2. Step 2: Convert to fraction form
    7,775.20/10,727.85 = 4,749.54/x
  3. Step 3: Cross multiply
    7,775.20x = 10,727.85 × 4,749.54
  4. Step 4: Simplify right side
    7,775.20x = 50,952,352.69
  5. Step 5: Solve for x
    x = 50,952,352.69/7,775.20
  6. Step 6: Final answer
    x = 6,553.19

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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.