Home / 2,018.56-2,785.68-1,179.76

Finding the Fourth Proportional to 2,018.56, 2,785.68 and 1,179.76

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Solution

The fourth proportional to 2,018.56, 2,785.68 and 1,179.76 is: 1,628.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.56 : 2,785.68 = 1,179.76 : x
  2. Step 2: Convert to fraction form
    2,018.56/2,785.68 = 1,179.76/x
  3. Step 3: Cross multiply
    2,018.56x = 2,785.68 × 1,179.76
  4. Step 4: Simplify right side
    2,018.56x = 3,286,433.84
  5. Step 5: Solve for x
    x = 3,286,433.84/2,018.56
  6. Step 6: Final answer
    x = 1,628.11

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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.