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Finding the Fourth Proportional to 4,969.04, 7,455.18 and 2,660

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Solution

The fourth proportional to 4,969.04, 7,455.18 and 2,660 is: 3,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.04 : 7,455.18 = 2,660 : x
  2. Step 2: Convert to fraction form
    4,969.04/7,455.18 = 2,660/x
  3. Step 3: Cross multiply
    4,969.04x = 7,455.18 × 2,660
  4. Step 4: Simplify right side
    4,969.04x = 19,830,778.80
  5. Step 5: Solve for x
    x = 19,830,778.80/4,969.04
  6. Step 6: Final answer
    x = 3,990.87

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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.