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Finding the Fourth Proportional to 5,763.76, 7,954.09 and 3,405.90

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Solution

The fourth proportional to 5,763.76, 7,954.09 and 3,405.90 is: 4,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,763.76 : 7,954.09 = 3,405.90 : x
  2. Step 2: Convert to fraction form
    5,763.76/7,954.09 = 3,405.90/x
  3. Step 3: Cross multiply
    5,763.76x = 7,954.09 × 3,405.90
  4. Step 4: Simplify right side
    5,763.76x = 27,090,835.13
  5. Step 5: Solve for x
    x = 27,090,835.13/5,763.76
  6. Step 6: Final answer
    x = 4,700.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.