Home / 1,576.51-2,171.94-1,133.64

Finding the Fourth Proportional to 1,576.51, 2,171.94 and 1,133.64

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Solution

The fourth proportional to 1,576.51, 2,171.94 and 1,133.64 is: 1,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.51 : 2,171.94 = 1,133.64 : x
  2. Step 2: Convert to fraction form
    1,576.51/2,171.94 = 1,133.64/x
  3. Step 3: Cross multiply
    1,576.51x = 2,171.94 × 1,133.64
  4. Step 4: Simplify right side
    1,576.51x = 2,462,198.06
  5. Step 5: Solve for x
    x = 2,462,198.06/1,576.51
  6. Step 6: Final answer
    x = 1,561.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.