Home / 3,114.18-4,293.37-2,117.71

Finding the Fourth Proportional to 3,114.18, 4,293.37 and 2,117.71

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Solution

The fourth proportional to 3,114.18, 4,293.37 and 2,117.71 is: 2,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.18 : 4,293.37 = 2,117.71 : x
  2. Step 2: Convert to fraction form
    3,114.18/4,293.37 = 2,117.71/x
  3. Step 3: Cross multiply
    3,114.18x = 4,293.37 × 2,117.71
  4. Step 4: Simplify right side
    3,114.18x = 9,092,120.60
  5. Step 5: Solve for x
    x = 9,092,120.60/3,114.18
  6. Step 6: Final answer
    x = 2,919.59

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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.