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Finding the Fourth Proportional to 3,458.44, 4,772.82 and 1,946.47

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Solution

The fourth proportional to 3,458.44, 4,772.82 and 1,946.47 is: 2,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.44 : 4,772.82 = 1,946.47 : x
  2. Step 2: Convert to fraction form
    3,458.44/4,772.82 = 1,946.47/x
  3. Step 3: Cross multiply
    3,458.44x = 4,772.82 × 1,946.47
  4. Step 4: Simplify right side
    3,458.44x = 9,290,141.21
  5. Step 5: Solve for x
    x = 9,290,141.21/3,458.44
  6. Step 6: Final answer
    x = 2,686.22

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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.