Home / 7,748.57-11,622.74-1,905.23

Finding the Fourth Proportional to 7,748.57, 11,622.74 and 1,905.23

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Solution

The fourth proportional to 7,748.57, 11,622.74 and 1,905.23 is: 2,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.57 : 11,622.74 = 1,905.23 : x
  2. Step 2: Convert to fraction form
    7,748.57/11,622.74 = 1,905.23/x
  3. Step 3: Cross multiply
    7,748.57x = 11,622.74 × 1,905.23
  4. Step 4: Simplify right side
    7,748.57x = 22,143,992.93
  5. Step 5: Solve for x
    x = 22,143,992.93/7,748.57
  6. Step 6: Final answer
    x = 2,857.82

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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.