Home / 2,779.24-4,168.86-1,135.78

Finding the Fourth Proportional to 2,779.24, 4,168.86 and 1,135.78

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Solution

The fourth proportional to 2,779.24, 4,168.86 and 1,135.78 is: 1,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.24 : 4,168.86 = 1,135.78 : x
  2. Step 2: Convert to fraction form
    2,779.24/4,168.86 = 1,135.78/x
  3. Step 3: Cross multiply
    2,779.24x = 4,168.86 × 1,135.78
  4. Step 4: Simplify right side
    2,779.24x = 4,734,921.07
  5. Step 5: Solve for x
    x = 4,734,921.07/2,779.24
  6. Step 6: Final answer
    x = 1,703.68

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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.