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Finding the Fourth Proportional to 2,271.44, 3,407.02 and 810.52

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Solution

The fourth proportional to 2,271.44, 3,407.02 and 810.52 is: 1,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.44 : 3,407.02 = 810.52 : x
  2. Step 2: Convert to fraction form
    2,271.44/3,407.02 = 810.52/x
  3. Step 3: Cross multiply
    2,271.44x = 3,407.02 × 810.52
  4. Step 4: Simplify right side
    2,271.44x = 2,761,457.85
  5. Step 5: Solve for x
    x = 2,761,457.85/2,271.44
  6. Step 6: Final answer
    x = 1,215.73

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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.