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Finding the Fourth Proportional to 4,630.60, 6,946.80 and 1,343.80

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Solution

The fourth proportional to 4,630.60, 6,946.80 and 1,343.80 is: 2,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,630.60 : 6,946.80 = 1,343.80 : x
  2. Step 2: Convert to fraction form
    4,630.60/6,946.80 = 1,343.80/x
  3. Step 3: Cross multiply
    4,630.60x = 6,946.80 × 1,343.80
  4. Step 4: Simplify right side
    4,630.60x = 9,335,109.84
  5. Step 5: Solve for x
    x = 9,335,109.84/4,630.60
  6. Step 6: Final answer
    x = 2,015.96

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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.