Home / 3,187.68-4,745.70-3,172.23

Finding the Fourth Proportional to 3,187.68, 4,745.70 and 3,172.23

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Solution

The fourth proportional to 3,187.68, 4,745.70 and 3,172.23 is: 4,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.68 : 4,745.70 = 3,172.23 : x
  2. Step 2: Convert to fraction form
    3,187.68/4,745.70 = 3,172.23/x
  3. Step 3: Cross multiply
    3,187.68x = 4,745.70 × 3,172.23
  4. Step 4: Simplify right side
    3,187.68x = 15,054,451.91
  5. Step 5: Solve for x
    x = 15,054,451.91/3,187.68
  6. Step 6: Final answer
    x = 4,722.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.