Home / 2,113.20-3,151.85-2,076.30

Finding the Fourth Proportional to 2,113.20, 3,151.85 and 2,076.30

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Solution

The fourth proportional to 2,113.20, 3,151.85 and 2,076.30 is: 3,096.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.20 : 3,151.85 = 2,076.30 : x
  2. Step 2: Convert to fraction form
    2,113.20/3,151.85 = 2,076.30/x
  3. Step 3: Cross multiply
    2,113.20x = 3,151.85 × 2,076.30
  4. Step 4: Simplify right side
    2,113.20x = 6,544,175.77
  5. Step 5: Solve for x
    x = 6,544,175.77/2,113.20
  6. Step 6: Final answer
    x = 3,096.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.