Home / 5,475.75-7,556.81-3,118.11

Finding the Fourth Proportional to 5,475.75, 7,556.81 and 3,118.11

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Solution

The fourth proportional to 5,475.75, 7,556.81 and 3,118.11 is: 4,303.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.75 : 7,556.81 = 3,118.11 : x
  2. Step 2: Convert to fraction form
    5,475.75/7,556.81 = 3,118.11/x
  3. Step 3: Cross multiply
    5,475.75x = 7,556.81 × 3,118.11
  4. Step 4: Simplify right side
    5,475.75x = 23,562,949.24
  5. Step 5: Solve for x
    x = 23,562,949.24/5,475.75
  6. Step 6: Final answer
    x = 4,303.15

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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.