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Finding the Fourth Proportional to 4,757.31, 7,130.83 and 1,983.24

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Solution

The fourth proportional to 4,757.31, 7,130.83 and 1,983.24 is: 2,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.31 : 7,130.83 = 1,983.24 : x
  2. Step 2: Convert to fraction form
    4,757.31/7,130.83 = 1,983.24/x
  3. Step 3: Cross multiply
    4,757.31x = 7,130.83 × 1,983.24
  4. Step 4: Simplify right side
    4,757.31x = 14,142,147.29
  5. Step 5: Solve for x
    x = 14,142,147.29/4,757.31
  6. Step 6: Final answer
    x = 2,972.72

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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.