Home / 2,785.87-4,195.18-2,011.30

Finding the Fourth Proportional to 2,785.87, 4,195.18 and 2,011.30

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Solution

The fourth proportional to 2,785.87, 4,195.18 and 2,011.30 is: 3,028.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.87 : 4,195.18 = 2,011.30 : x
  2. Step 2: Convert to fraction form
    2,785.87/4,195.18 = 2,011.30/x
  3. Step 3: Cross multiply
    2,785.87x = 4,195.18 × 2,011.30
  4. Step 4: Simplify right side
    2,785.87x = 8,437,765.53
  5. Step 5: Solve for x
    x = 8,437,765.53/2,785.87
  6. Step 6: Final answer
    x = 3,028.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.