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Finding the Fourth Proportional to 2,047.22, 3,071.10 and 814.76

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Solution

The fourth proportional to 2,047.22, 3,071.10 and 814.76 is: 1,222.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.22 : 3,071.10 = 814.76 : x
  2. Step 2: Convert to fraction form
    2,047.22/3,071.10 = 814.76/x
  3. Step 3: Cross multiply
    2,047.22x = 3,071.10 × 814.76
  4. Step 4: Simplify right side
    2,047.22x = 2,502,194.08
  5. Step 5: Solve for x
    x = 2,502,194.08/2,047.22
  6. Step 6: Final answer
    x = 1,222.24

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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.