Home / 3,114.68-4,297.20-2,118.24

Finding the Fourth Proportional to 3,114.68, 4,297.20 and 2,118.24

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Solution

The fourth proportional to 3,114.68, 4,297.20 and 2,118.24 is: 2,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.68 : 4,297.20 = 2,118.24 : x
  2. Step 2: Convert to fraction form
    3,114.68/4,297.20 = 2,118.24/x
  3. Step 3: Cross multiply
    3,114.68x = 4,297.20 × 2,118.24
  4. Step 4: Simplify right side
    3,114.68x = 9,102,500.93
  5. Step 5: Solve for x
    x = 9,102,500.93/3,114.68
  6. Step 6: Final answer
    x = 2,922.45

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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.