Home / 5,268.58-7,269.34-3,142.78

Finding the Fourth Proportional to 5,268.58, 7,269.34 and 3,142.78

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Solution

The fourth proportional to 5,268.58, 7,269.34 and 3,142.78 is: 4,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.58 : 7,269.34 = 3,142.78 : x
  2. Step 2: Convert to fraction form
    5,268.58/7,269.34 = 3,142.78/x
  3. Step 3: Cross multiply
    5,268.58x = 7,269.34 × 3,142.78
  4. Step 4: Simplify right side
    5,268.58x = 22,845,936.37
  5. Step 5: Solve for x
    x = 22,845,936.37/5,268.58
  6. Step 6: Final answer
    x = 4,336.26

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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.