Home / 3,691.99-5,094.57-2,120.32

Finding the Fourth Proportional to 3,691.99, 5,094.57 and 2,120.32

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Solution

The fourth proportional to 3,691.99, 5,094.57 and 2,120.32 is: 2,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.99 : 5,094.57 = 2,120.32 : x
  2. Step 2: Convert to fraction form
    3,691.99/5,094.57 = 2,120.32/x
  3. Step 3: Cross multiply
    3,691.99x = 5,094.57 × 2,120.32
  4. Step 4: Simplify right side
    3,691.99x = 10,802,118.66
  5. Step 5: Solve for x
    x = 10,802,118.66/3,691.99
  6. Step 6: Final answer
    x = 2,925.83

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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.