Home / 7,126.92-10,690.34-1,932.80

Finding the Fourth Proportional to 7,126.92, 10,690.34 and 1,932.80

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Solution

The fourth proportional to 7,126.92, 10,690.34 and 1,932.80 is: 2,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.92 : 10,690.34 = 1,932.80 : x
  2. Step 2: Convert to fraction form
    7,126.92/10,690.34 = 1,932.80/x
  3. Step 3: Cross multiply
    7,126.92x = 10,690.34 × 1,932.80
  4. Step 4: Simplify right side
    7,126.92x = 20,662,289.15
  5. Step 5: Solve for x
    x = 20,662,289.15/7,126.92
  6. Step 6: Final answer
    x = 2,899.19

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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.