Home / 3,126.34-4,684.87-1,275.22

Finding the Fourth Proportional to 3,126.34, 4,684.87 and 1,275.22

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Solution

The fourth proportional to 3,126.34, 4,684.87 and 1,275.22 is: 1,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.34 : 4,684.87 = 1,275.22 : x
  2. Step 2: Convert to fraction form
    3,126.34/4,684.87 = 1,275.22/x
  3. Step 3: Cross multiply
    3,126.34x = 4,684.87 × 1,275.22
  4. Step 4: Simplify right side
    3,126.34x = 5,974,239.92
  5. Step 5: Solve for x
    x = 5,974,239.92/3,126.34
  6. Step 6: Final answer
    x = 1,910.94

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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.