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Finding the Fourth Proportional to 3,166.66, 4,750.80 and 1,219.18

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Solution

The fourth proportional to 3,166.66, 4,750.80 and 1,219.18 is: 1,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.66 : 4,750.80 = 1,219.18 : x
  2. Step 2: Convert to fraction form
    3,166.66/4,750.80 = 1,219.18/x
  3. Step 3: Cross multiply
    3,166.66x = 4,750.80 × 1,219.18
  4. Step 4: Simplify right side
    3,166.66x = 5,792,080.34
  5. Step 5: Solve for x
    x = 5,792,080.34/3,166.66
  6. Step 6: Final answer
    x = 1,829.08

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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.