Home / 3,125.76-4,314.40-2,077.44

Finding the Fourth Proportional to 3,125.76, 4,314.40 and 2,077.44

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Solution

The fourth proportional to 3,125.76, 4,314.40 and 2,077.44 is: 2,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.76 : 4,314.40 = 2,077.44 : x
  2. Step 2: Convert to fraction form
    3,125.76/4,314.40 = 2,077.44/x
  3. Step 3: Cross multiply
    3,125.76x = 4,314.40 × 2,077.44
  4. Step 4: Simplify right side
    3,125.76x = 8,962,907.14
  5. Step 5: Solve for x
    x = 8,962,907.14/3,125.76
  6. Step 6: Final answer
    x = 2,867.43

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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.