Home / 5,475.77-7,556.56-2,991.77

Finding the Fourth Proportional to 5,475.77, 7,556.56 and 2,991.77

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Solution

The fourth proportional to 5,475.77, 7,556.56 and 2,991.77 is: 4,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.77 : 7,556.56 = 2,991.77 : x
  2. Step 2: Convert to fraction form
    5,475.77/7,556.56 = 2,991.77/x
  3. Step 3: Cross multiply
    5,475.77x = 7,556.56 × 2,991.77
  4. Step 4: Simplify right side
    5,475.77x = 22,607,451.73
  5. Step 5: Solve for x
    x = 22,607,451.73/5,475.77
  6. Step 6: Final answer
    x = 4,128.64

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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.