Home / 5,477.28-7,556.76-3,118.80

Finding the Fourth Proportional to 5,477.28, 7,556.76 and 3,118.80

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Solution

The fourth proportional to 5,477.28, 7,556.76 and 3,118.80 is: 4,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.28 : 7,556.76 = 3,118.80 : x
  2. Step 2: Convert to fraction form
    5,477.28/7,556.76 = 3,118.80/x
  3. Step 3: Cross multiply
    5,477.28x = 7,556.76 × 3,118.80
  4. Step 4: Simplify right side
    5,477.28x = 23,568,023.09
  5. Step 5: Solve for x
    x = 23,568,023.09/5,477.28
  6. Step 6: Final answer
    x = 4,302.87

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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.