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Finding the Fourth Proportional to 4,817.78, 6,648.79 and 2,929.05

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Solution

The fourth proportional to 4,817.78, 6,648.79 and 2,929.05 is: 4,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.78 : 6,648.79 = 2,929.05 : x
  2. Step 2: Convert to fraction form
    4,817.78/6,648.79 = 2,929.05/x
  3. Step 3: Cross multiply
    4,817.78x = 6,648.79 × 2,929.05
  4. Step 4: Simplify right side
    4,817.78x = 19,474,638.35
  5. Step 5: Solve for x
    x = 19,474,638.35/4,817.78
  6. Step 6: Final answer
    x = 4,042.24

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1.5x scale

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.