Home / 7,126.20-10,690.47-2,195.84

Finding the Fourth Proportional to 7,126.20, 10,690.47 and 2,195.84

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Solution

The fourth proportional to 7,126.20, 10,690.47 and 2,195.84 is: 3,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.20 : 10,690.47 = 2,195.84 : x
  2. Step 2: Convert to fraction form
    7,126.20/10,690.47 = 2,195.84/x
  3. Step 3: Cross multiply
    7,126.20x = 10,690.47 × 2,195.84
  4. Step 4: Simplify right side
    7,126.20x = 23,474,561.64
  5. Step 5: Solve for x
    x = 23,474,561.64/7,126.20
  6. Step 6: Final answer
    x = 3,294.12

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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.