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Finding the Fourth Proportional to 2,034.23, 3,051.47 and 647.57

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Solution

The fourth proportional to 2,034.23, 3,051.47 and 647.57 is: 971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,034.23 : 3,051.47 = 647.57 : x
  2. Step 2: Convert to fraction form
    2,034.23/3,051.47 = 647.57/x
  3. Step 3: Cross multiply
    2,034.23x = 3,051.47 × 647.57
  4. Step 4: Simplify right side
    2,034.23x = 1,976,049.68
  5. Step 5: Solve for x
    x = 1,976,049.68/2,034.23
  6. Step 6: Final answer
    x = 971.40

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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.