Home / 2,019.17-3,026.93-720.34

Finding the Fourth Proportional to 2,019.17, 3,026.93 and 720.34

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Solution

The fourth proportional to 2,019.17, 3,026.93 and 720.34 is: 1,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.17 : 3,026.93 = 720.34 : x
  2. Step 2: Convert to fraction form
    2,019.17/3,026.93 = 720.34/x
  3. Step 3: Cross multiply
    2,019.17x = 3,026.93 × 720.34
  4. Step 4: Simplify right side
    2,019.17x = 2,180,412.99
  5. Step 5: Solve for x
    x = 2,180,412.99/2,019.17
  6. Step 6: Final answer
    x = 1,079.85

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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.