Home / 7,748.64-11,622.96-1,905.26

Finding the Fourth Proportional to 7,748.64, 11,622.96 and 1,905.26

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Solution

The fourth proportional to 7,748.64, 11,622.96 and 1,905.26 is: 2,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.64 : 11,622.96 = 1,905.26 : x
  2. Step 2: Convert to fraction form
    7,748.64/11,622.96 = 1,905.26/x
  3. Step 3: Cross multiply
    7,748.64x = 11,622.96 × 1,905.26
  4. Step 4: Simplify right side
    7,748.64x = 22,144,702.65
  5. Step 5: Solve for x
    x = 22,144,702.65/7,748.64
  6. Step 6: Final answer
    x = 2,857.88

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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.