Home / 3,072.86-4,240.53-1,675.61

Finding the Fourth Proportional to 3,072.86, 4,240.53 and 1,675.61

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Solution

The fourth proportional to 3,072.86, 4,240.53 and 1,675.61 is: 2,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.86 : 4,240.53 = 1,675.61 : x
  2. Step 2: Convert to fraction form
    3,072.86/4,240.53 = 1,675.61/x
  3. Step 3: Cross multiply
    3,072.86x = 4,240.53 × 1,675.61
  4. Step 4: Simplify right side
    3,072.86x = 7,105,453.27
  5. Step 5: Solve for x
    x = 7,105,453.27/3,072.86
  6. Step 6: Final answer
    x = 2,312.33

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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.