Home / 7,193.38-10,785.74-2,812.90

Finding the Fourth Proportional to 7,193.38, 10,785.74 and 2,812.90

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Solution

The fourth proportional to 7,193.38, 10,785.74 and 2,812.90 is: 4,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193.38 : 10,785.74 = 2,812.90 : x
  2. Step 2: Convert to fraction form
    7,193.38/10,785.74 = 2,812.90/x
  3. Step 3: Cross multiply
    7,193.38x = 10,785.74 × 2,812.90
  4. Step 4: Simplify right side
    7,193.38x = 30,339,188.11
  5. Step 5: Solve for x
    x = 30,339,188.11/7,193.38
  6. Step 6: Final answer
    x = 4,217.66

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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.