Home / 3,072.10-4,239.66-1,674.94

Finding the Fourth Proportional to 3,072.10, 4,239.66 and 1,674.94

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Solution

The fourth proportional to 3,072.10, 4,239.66 and 1,674.94 is: 2,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.10 : 4,239.66 = 1,674.94 : x
  2. Step 2: Convert to fraction form
    3,072.10/4,239.66 = 1,674.94/x
  3. Step 3: Cross multiply
    3,072.10x = 4,239.66 × 1,674.94
  4. Step 4: Simplify right side
    3,072.10x = 7,101,176.12
  5. Step 5: Solve for x
    x = 7,101,176.12/3,072.10
  6. Step 6: Final answer
    x = 2,311.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.