Home / 3,072.37-4,239.90-1,675.12

Finding the Fourth Proportional to 3,072.37, 4,239.90 and 1,675.12

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Solution

The fourth proportional to 3,072.37, 4,239.90 and 1,675.12 is: 2,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.37 : 4,239.90 = 1,675.12 : x
  2. Step 2: Convert to fraction form
    3,072.37/4,239.90 = 1,675.12/x
  3. Step 3: Cross multiply
    3,072.37x = 4,239.90 × 1,675.12
  4. Step 4: Simplify right side
    3,072.37x = 7,102,341.29
  5. Step 5: Solve for x
    x = 7,102,341.29/3,072.37
  6. Step 6: Final answer
    x = 2,311.68

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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.