Home / 3,115.90-4,674.73-1,268.34

Finding the Fourth Proportional to 3,115.90, 4,674.73 and 1,268.34

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Solution

The fourth proportional to 3,115.90, 4,674.73 and 1,268.34 is: 1,902.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.90 : 4,674.73 = 1,268.34 : x
  2. Step 2: Convert to fraction form
    3,115.90/4,674.73 = 1,268.34/x
  3. Step 3: Cross multiply
    3,115.90x = 4,674.73 × 1,268.34
  4. Step 4: Simplify right side
    3,115.90x = 5,929,123.37
  5. Step 5: Solve for x
    x = 5,929,123.37/3,115.90
  6. Step 6: Final answer
    x = 1,902.86

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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.