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Finding the Fourth Proportional to 1,995.43, 2,993.74 and 899.50

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Solution

The fourth proportional to 1,995.43, 2,993.74 and 899.50 is: 1,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.43 : 2,993.74 = 899.50 : x
  2. Step 2: Convert to fraction form
    1,995.43/2,993.74 = 899.50/x
  3. Step 3: Cross multiply
    1,995.43x = 2,993.74 × 899.50
  4. Step 4: Simplify right side
    1,995.43x = 2,692,854.16
  5. Step 5: Solve for x
    x = 2,692,854.16/1,995.43
  6. Step 6: Final answer
    x = 1,349.51

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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.