Home / 2,375.96-3,280.36-2,126.86

Finding the Fourth Proportional to 2,375.96, 3,280.36 and 2,126.86

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Solution

The fourth proportional to 2,375.96, 3,280.36 and 2,126.86 is: 2,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.96 : 3,280.36 = 2,126.86 : x
  2. Step 2: Convert to fraction form
    2,375.96/3,280.36 = 2,126.86/x
  3. Step 3: Cross multiply
    2,375.96x = 3,280.36 × 2,126.86
  4. Step 4: Simplify right side
    2,375.96x = 6,976,866.47
  5. Step 5: Solve for x
    x = 6,976,866.47/2,375.96
  6. Step 6: Final answer
    x = 2,936.44

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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.