Home / 2,775.03-4,163.27-1,388.31

Finding the Fourth Proportional to 2,775.03, 4,163.27 and 1,388.31

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Solution

The fourth proportional to 2,775.03, 4,163.27 and 1,388.31 is: 2,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.03 : 4,163.27 = 1,388.31 : x
  2. Step 2: Convert to fraction form
    2,775.03/4,163.27 = 1,388.31/x
  3. Step 3: Cross multiply
    2,775.03x = 4,163.27 × 1,388.31
  4. Step 4: Simplify right side
    2,775.03x = 5,779,902.43
  5. Step 5: Solve for x
    x = 5,779,902.43/2,775.03
  6. Step 6: Final answer
    x = 2,082.83

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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.