Home / 3,138.37-4,707.29-1,058.32

Finding the Fourth Proportional to 3,138.37, 4,707.29 and 1,058.32

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Solution

The fourth proportional to 3,138.37, 4,707.29 and 1,058.32 is: 1,587.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.37 : 4,707.29 = 1,058.32 : x
  2. Step 2: Convert to fraction form
    3,138.37/4,707.29 = 1,058.32/x
  3. Step 3: Cross multiply
    3,138.37x = 4,707.29 × 1,058.32
  4. Step 4: Simplify right side
    3,138.37x = 4,981,819.15
  5. Step 5: Solve for x
    x = 4,981,819.15/3,138.37
  6. Step 6: Final answer
    x = 1,587.39

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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.