Home / 7,126.96-10,689.37-2,743.84

Finding the Fourth Proportional to 7,126.96, 10,689.37 and 2,743.84

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Solution

The fourth proportional to 7,126.96, 10,689.37 and 2,743.84 is: 4,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.96 : 10,689.37 = 2,743.84 : x
  2. Step 2: Convert to fraction form
    7,126.96/10,689.37 = 2,743.84/x
  3. Step 3: Cross multiply
    7,126.96x = 10,689.37 × 2,743.84
  4. Step 4: Simplify right side
    7,126.96x = 29,329,920.98
  5. Step 5: Solve for x
    x = 29,329,920.98/7,126.96
  6. Step 6: Final answer
    x = 4,115.35

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1.5x scale

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.