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Finding the Fourth Proportional to 1,972.56, 2,950.20 and 1,609.68

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Solution

The fourth proportional to 1,972.56, 2,950.20 and 1,609.68 is: 2,407.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.56 : 2,950.20 = 1,609.68 : x
  2. Step 2: Convert to fraction form
    1,972.56/2,950.20 = 1,609.68/x
  3. Step 3: Cross multiply
    1,972.56x = 2,950.20 × 1,609.68
  4. Step 4: Simplify right side
    1,972.56x = 4,748,877.94
  5. Step 5: Solve for x
    x = 4,748,877.94/1,972.56
  6. Step 6: Final answer
    x = 2,407.47

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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.