Home / 3,172.36-4,758.46-1,439.72

Finding the Fourth Proportional to 3,172.36, 4,758.46 and 1,439.72

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Solution

The fourth proportional to 3,172.36, 4,758.46 and 1,439.72 is: 2,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.36 : 4,758.46 = 1,439.72 : x
  2. Step 2: Convert to fraction form
    3,172.36/4,758.46 = 1,439.72/x
  3. Step 3: Cross multiply
    3,172.36x = 4,758.46 × 1,439.72
  4. Step 4: Simplify right side
    3,172.36x = 6,850,850.03
  5. Step 5: Solve for x
    x = 6,850,850.03/3,172.36
  6. Step 6: Final answer
    x = 2,159.54

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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.