Home / 2,018.20-2,785.03-1,178.95

Finding the Fourth Proportional to 2,018.20, 2,785.03 and 1,178.95

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Solution

The fourth proportional to 2,018.20, 2,785.03 and 1,178.95 is: 1,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.20 : 2,785.03 = 1,178.95 : x
  2. Step 2: Convert to fraction form
    2,018.20/2,785.03 = 1,178.95/x
  3. Step 3: Cross multiply
    2,018.20x = 2,785.03 × 1,178.95
  4. Step 4: Simplify right side
    2,018.20x = 3,283,411.12
  5. Step 5: Solve for x
    x = 3,283,411.12/2,018.20
  6. Step 6: Final answer
    x = 1,626.90

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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.