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Finding the Fourth Proportional to 1,933.31, 2,899.96 and 472.45

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Solution

The fourth proportional to 1,933.31, 2,899.96 and 472.45 is: 708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.31 : 2,899.96 = 472.45 : x
  2. Step 2: Convert to fraction form
    1,933.31/2,899.96 = 472.45/x
  3. Step 3: Cross multiply
    1,933.31x = 2,899.96 × 472.45
  4. Step 4: Simplify right side
    1,933.31x = 1,370,086.10
  5. Step 5: Solve for x
    x = 1,370,086.10/1,933.31
  6. Step 6: Final answer
    x = 708.67

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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.