Home / 3,019.88-4,531.08-1,172.28

Finding the Fourth Proportional to 3,019.88, 4,531.08 and 1,172.28

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Solution

The fourth proportional to 3,019.88, 4,531.08 and 1,172.28 is: 1,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.88 : 4,531.08 = 1,172.28 : x
  2. Step 2: Convert to fraction form
    3,019.88/4,531.08 = 1,172.28/x
  3. Step 3: Cross multiply
    3,019.88x = 4,531.08 × 1,172.28
  4. Step 4: Simplify right side
    3,019.88x = 5,311,694.46
  5. Step 5: Solve for x
    x = 5,311,694.46/3,019.88
  6. Step 6: Final answer
    x = 1,758.91

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1.5x scale

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.