Home / 3,072.30-4,240.68-2,657.11

Finding the Fourth Proportional to 3,072.30, 4,240.68 and 2,657.11

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Solution

The fourth proportional to 3,072.30, 4,240.68 and 2,657.11 is: 3,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.30 : 4,240.68 = 2,657.11 : x
  2. Step 2: Convert to fraction form
    3,072.30/4,240.68 = 2,657.11/x
  3. Step 3: Cross multiply
    3,072.30x = 4,240.68 × 2,657.11
  4. Step 4: Simplify right side
    3,072.30x = 11,267,939.95
  5. Step 5: Solve for x
    x = 11,267,939.95/3,072.30
  6. Step 6: Final answer
    x = 3,667.60

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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.