Home / 2,018.91-3,025.85-718.95

Finding the Fourth Proportional to 2,018.91, 3,025.85 and 718.95

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Solution

The fourth proportional to 2,018.91, 3,025.85 and 718.95 is: 1,077.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.91 : 3,025.85 = 718.95 : x
  2. Step 2: Convert to fraction form
    2,018.91/3,025.85 = 718.95/x
  3. Step 3: Cross multiply
    2,018.91x = 3,025.85 × 718.95
  4. Step 4: Simplify right side
    2,018.91x = 2,175,431.26
  5. Step 5: Solve for x
    x = 2,175,431.26/2,018.91
  6. Step 6: Final answer
    x = 1,077.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.