Home / 1,926.64-2,891.40-1,197.28

Finding the Fourth Proportional to 1,926.64, 2,891.40 and 1,197.28

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Solution

The fourth proportional to 1,926.64, 2,891.40 and 1,197.28 is: 1,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.64 : 2,891.40 = 1,197.28 : x
  2. Step 2: Convert to fraction form
    1,926.64/2,891.40 = 1,197.28/x
  3. Step 3: Cross multiply
    1,926.64x = 2,891.40 × 1,197.28
  4. Step 4: Simplify right side
    1,926.64x = 3,461,815.39
  5. Step 5: Solve for x
    x = 3,461,815.39/1,926.64
  6. Step 6: Final answer
    x = 1,796.81

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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.