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Finding the Fourth Proportional to 2,370.68, 3,271.68 and 1,322.72

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Solution

The fourth proportional to 2,370.68, 3,271.68 and 1,322.72 is: 1,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.68 : 3,271.68 = 1,322.72 : x
  2. Step 2: Convert to fraction form
    2,370.68/3,271.68 = 1,322.72/x
  3. Step 3: Cross multiply
    2,370.68x = 3,271.68 × 1,322.72
  4. Step 4: Simplify right side
    2,370.68x = 4,327,516.57
  5. Step 5: Solve for x
    x = 4,327,516.57/2,370.68
  6. Step 6: Final answer
    x = 1,825.43

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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.