Home / 1,867.21-2,576.75-1,027.89

Finding the Fourth Proportional to 1,867.21, 2,576.75 and 1,027.89

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Solution

The fourth proportional to 1,867.21, 2,576.75 and 1,027.89 is: 1,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.21 : 2,576.75 = 1,027.89 : x
  2. Step 2: Convert to fraction form
    1,867.21/2,576.75 = 1,027.89/x
  3. Step 3: Cross multiply
    1,867.21x = 2,576.75 × 1,027.89
  4. Step 4: Simplify right side
    1,867.21x = 2,648,610.42
  5. Step 5: Solve for x
    x = 2,648,610.42/1,867.21
  6. Step 6: Final answer
    x = 1,418.49

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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.