Home / 3,126.35-4,689.75-2,968.70

Finding the Fourth Proportional to 3,126.35, 4,689.75 and 2,968.70

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Solution

The fourth proportional to 3,126.35, 4,689.75 and 2,968.70 is: 4,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.35 : 4,689.75 = 2,968.70 : x
  2. Step 2: Convert to fraction form
    3,126.35/4,689.75 = 2,968.70/x
  3. Step 3: Cross multiply
    3,126.35x = 4,689.75 × 2,968.70
  4. Step 4: Simplify right side
    3,126.35x = 13,922,458.19
  5. Step 5: Solve for x
    x = 13,922,458.19/3,126.35
  6. Step 6: Final answer
    x = 4,453.27

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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.