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Finding the Fourth Proportional to 1,466.79, 2,198.20 and 541.48

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Solution

The fourth proportional to 1,466.79, 2,198.20 and 541.48 is: 811.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,466.79 : 2,198.20 = 541.48 : x
  2. Step 2: Convert to fraction form
    1,466.79/2,198.20 = 541.48/x
  3. Step 3: Cross multiply
    1,466.79x = 2,198.20 × 541.48
  4. Step 4: Simplify right side
    1,466.79x = 1,190,281.34
  5. Step 5: Solve for x
    x = 1,190,281.34/1,466.79
  6. Step 6: Final answer
    x = 811.49

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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.