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Finding the Fourth Proportional to 3,929.22, 5,893.38 and 1,007.55

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Solution

The fourth proportional to 3,929.22, 5,893.38 and 1,007.55 is: 1,511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.22 : 5,893.38 = 1,007.55 : x
  2. Step 2: Convert to fraction form
    3,929.22/5,893.38 = 1,007.55/x
  3. Step 3: Cross multiply
    3,929.22x = 5,893.38 × 1,007.55
  4. Step 4: Simplify right side
    3,929.22x = 5,937,875.02
  5. Step 5: Solve for x
    x = 5,937,875.02/3,929.22
  6. Step 6: Final answer
    x = 1,511.21

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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.