Home / 2,018.88-3,026.43-720.18

Finding the Fourth Proportional to 2,018.88, 3,026.43 and 720.18

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Solution

The fourth proportional to 2,018.88, 3,026.43 and 720.18 is: 1,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.88 : 3,026.43 = 720.18 : x
  2. Step 2: Convert to fraction form
    2,018.88/3,026.43 = 720.18/x
  3. Step 3: Cross multiply
    2,018.88x = 3,026.43 × 720.18
  4. Step 4: Simplify right side
    2,018.88x = 2,179,574.36
  5. Step 5: Solve for x
    x = 2,179,574.36/2,018.88
  6. Step 6: Final answer
    x = 1,079.60

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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.