Home / 3,114.03-4,290.87-2,117.58

Finding the Fourth Proportional to 3,114.03, 4,290.87 and 2,117.58

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Solution

The fourth proportional to 3,114.03, 4,290.87 and 2,117.58 is: 2,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.03 : 4,290.87 = 2,117.58 : x
  2. Step 2: Convert to fraction form
    3,114.03/4,290.87 = 2,117.58/x
  3. Step 3: Cross multiply
    3,114.03x = 4,290.87 × 2,117.58
  4. Step 4: Simplify right side
    3,114.03x = 9,086,260.49
  5. Step 5: Solve for x
    x = 9,086,260.49/3,114.03
  6. Step 6: Final answer
    x = 2,917.85

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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.