Home / 5,475.76-7,556.20-2,991.76

Finding the Fourth Proportional to 5,475.76, 7,556.20 and 2,991.76

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Solution

The fourth proportional to 5,475.76, 7,556.20 and 2,991.76 is: 4,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.76 : 7,556.20 = 2,991.76 : x
  2. Step 2: Convert to fraction form
    5,475.76/7,556.20 = 2,991.76/x
  3. Step 3: Cross multiply
    5,475.76x = 7,556.20 × 2,991.76
  4. Step 4: Simplify right side
    5,475.76x = 22,606,336.91
  5. Step 5: Solve for x
    x = 22,606,336.91/5,475.76
  6. Step 6: Final answer
    x = 4,128.44

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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.