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Finding the Fourth Proportional to 1,929.54, 2,663.46 and 1,266.54

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Solution

The fourth proportional to 1,929.54, 2,663.46 and 1,266.54 is: 1,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.54 : 2,663.46 = 1,266.54 : x
  2. Step 2: Convert to fraction form
    1,929.54/2,663.46 = 1,266.54/x
  3. Step 3: Cross multiply
    1,929.54x = 2,663.46 × 1,266.54
  4. Step 4: Simplify right side
    1,929.54x = 3,373,378.63
  5. Step 5: Solve for x
    x = 3,373,378.63/1,929.54
  6. Step 6: Final answer
    x = 1,748.28

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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.