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Finding the Fourth Proportional to 3,929.44, 5,893.70 and 1,007.76

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Solution

The fourth proportional to 3,929.44, 5,893.70 and 1,007.76 is: 1,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.44 : 5,893.70 = 1,007.76 : x
  2. Step 2: Convert to fraction form
    3,929.44/5,893.70 = 1,007.76/x
  3. Step 3: Cross multiply
    3,929.44x = 5,893.70 × 1,007.76
  4. Step 4: Simplify right side
    3,929.44x = 5,939,435.11
  5. Step 5: Solve for x
    x = 5,939,435.11/3,929.44
  6. Step 6: Final answer
    x = 1,511.52

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1.5x scale

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.