Home / 3,119.10-4,677.26-927.96

Finding the Fourth Proportional to 3,119.10, 4,677.26 and 927.96

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Solution

The fourth proportional to 3,119.10, 4,677.26 and 927.96 is: 1,391.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.10 : 4,677.26 = 927.96 : x
  2. Step 2: Convert to fraction form
    3,119.10/4,677.26 = 927.96/x
  3. Step 3: Cross multiply
    3,119.10x = 4,677.26 × 927.96
  4. Step 4: Simplify right side
    3,119.10x = 4,340,310.19
  5. Step 5: Solve for x
    x = 4,340,310.19/3,119.10
  6. Step 6: Final answer
    x = 1,391.53

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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.