Home / 3,125.32-4,687.68-1,276.50

Finding the Fourth Proportional to 3,125.32, 4,687.68 and 1,276.50

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Solution

The fourth proportional to 3,125.32, 4,687.68 and 1,276.50 is: 1,914.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.32 : 4,687.68 = 1,276.50 : x
  2. Step 2: Convert to fraction form
    3,125.32/4,687.68 = 1,276.50/x
  3. Step 3: Cross multiply
    3,125.32x = 4,687.68 × 1,276.50
  4. Step 4: Simplify right side
    3,125.32x = 5,983,823.52
  5. Step 5: Solve for x
    x = 5,983,823.52/3,125.32
  6. Step 6: Final answer
    x = 1,914.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.