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Finding the Fourth Proportional to 3,930.47, 5,898.62 and 2,893.32

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Solution

The fourth proportional to 3,930.47, 5,898.62 and 2,893.32 is: 4,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.47 : 5,898.62 = 2,893.32 : x
  2. Step 2: Convert to fraction form
    3,930.47/5,898.62 = 2,893.32/x
  3. Step 3: Cross multiply
    3,930.47x = 5,898.62 × 2,893.32
  4. Step 4: Simplify right side
    3,930.47x = 17,066,602.45
  5. Step 5: Solve for x
    x = 17,066,602.45/3,930.47
  6. Step 6: Final answer
    x = 4,342.12

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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.