Home / 3,125.14-4,687.98-1,276.38

Finding the Fourth Proportional to 3,125.14, 4,687.98 and 1,276.38

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Solution

The fourth proportional to 3,125.14, 4,687.98 and 1,276.38 is: 1,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.14 : 4,687.98 = 1,276.38 : x
  2. Step 2: Convert to fraction form
    3,125.14/4,687.98 = 1,276.38/x
  3. Step 3: Cross multiply
    3,125.14x = 4,687.98 × 1,276.38
  4. Step 4: Simplify right side
    3,125.14x = 5,983,643.91
  5. Step 5: Solve for x
    x = 5,983,643.91/3,125.14
  6. Step 6: Final answer
    x = 1,914.68

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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.