Home / 2,969.68-4,455.55-1,121.32

Finding the Fourth Proportional to 2,969.68, 4,455.55 and 1,121.32

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Solution

The fourth proportional to 2,969.68, 4,455.55 and 1,121.32 is: 1,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.68 : 4,455.55 = 1,121.32 : x
  2. Step 2: Convert to fraction form
    2,969.68/4,455.55 = 1,121.32/x
  3. Step 3: Cross multiply
    2,969.68x = 4,455.55 × 1,121.32
  4. Step 4: Simplify right side
    2,969.68x = 4,996,097.33
  5. Step 5: Solve for x
    x = 4,996,097.33/2,969.68
  6. Step 6: Final answer
    x = 1,682.37

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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.