Home / 1,576.40-2,365.06-845.42

Finding the Fourth Proportional to 1,576.40, 2,365.06 and 845.42

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Solution

The fourth proportional to 1,576.40, 2,365.06 and 845.42 is: 1,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.40 : 2,365.06 = 845.42 : x
  2. Step 2: Convert to fraction form
    1,576.40/2,365.06 = 845.42/x
  3. Step 3: Cross multiply
    1,576.40x = 2,365.06 × 845.42
  4. Step 4: Simplify right side
    1,576.40x = 1,999,469.03
  5. Step 5: Solve for x
    x = 1,999,469.03/1,576.40
  6. Step 6: Final answer
    x = 1,268.38

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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.