Home / 7,126.16-10,688.42-2,195.38

Finding the Fourth Proportional to 7,126.16, 10,688.42 and 2,195.38

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Solution

The fourth proportional to 7,126.16, 10,688.42 and 2,195.38 is: 3,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.16 : 10,688.42 = 2,195.38 : x
  2. Step 2: Convert to fraction form
    7,126.16/10,688.42 = 2,195.38/x
  3. Step 3: Cross multiply
    7,126.16x = 10,688.42 × 2,195.38
  4. Step 4: Simplify right side
    7,126.16x = 23,465,143.50
  5. Step 5: Solve for x
    x = 23,465,143.50/7,126.16
  6. Step 6: Final answer
    x = 3,292.82

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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.