Home / 2,775.05-4,162.75-1,131.56

Finding the Fourth Proportional to 2,775.05, 4,162.75 and 1,131.56

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Solution

The fourth proportional to 2,775.05, 4,162.75 and 1,131.56 is: 1,697.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.05 : 4,162.75 = 1,131.56 : x
  2. Step 2: Convert to fraction form
    2,775.05/4,162.75 = 1,131.56/x
  3. Step 3: Cross multiply
    2,775.05x = 4,162.75 × 1,131.56
  4. Step 4: Simplify right side
    2,775.05x = 4,710,408.97
  5. Step 5: Solve for x
    x = 4,710,408.97/2,775.05
  6. Step 6: Final answer
    x = 1,697.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.