Home / 1,745.78-2,630.31-1,579.20

Finding the Fourth Proportional to 1,745.78, 2,630.31 and 1,579.20

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Solution

The fourth proportional to 1,745.78, 2,630.31 and 1,579.20 is: 2,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.78 : 2,630.31 = 1,579.20 : x
  2. Step 2: Convert to fraction form
    1,745.78/2,630.31 = 1,579.20/x
  3. Step 3: Cross multiply
    1,745.78x = 2,630.31 × 1,579.20
  4. Step 4: Simplify right side
    1,745.78x = 4,153,785.55
  5. Step 5: Solve for x
    x = 4,153,785.55/1,745.78
  6. Step 6: Final answer
    x = 2,379.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.