Home / 7,126.88-10,690.32-3,230.38

Finding the Fourth Proportional to 7,126.88, 10,690.32 and 3,230.38

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Solution

The fourth proportional to 7,126.88, 10,690.32 and 3,230.38 is: 4,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.88 : 10,690.32 = 3,230.38 : x
  2. Step 2: Convert to fraction form
    7,126.88/10,690.32 = 3,230.38/x
  3. Step 3: Cross multiply
    7,126.88x = 10,690.32 × 3,230.38
  4. Step 4: Simplify right side
    7,126.88x = 34,533,742.47
  5. Step 5: Solve for x
    x = 34,533,742.47/7,126.88
  6. Step 6: Final answer
    x = 4,845.56

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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.