Home / 3,980.27-5,970.54-1,058.58

Finding the Fourth Proportional to 3,980.27, 5,970.54 and 1,058.58

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Solution

The fourth proportional to 3,980.27, 5,970.54 and 1,058.58 is: 1,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.27 : 5,970.54 = 1,058.58 : x
  2. Step 2: Convert to fraction form
    3,980.27/5,970.54 = 1,058.58/x
  3. Step 3: Cross multiply
    3,980.27x = 5,970.54 × 1,058.58
  4. Step 4: Simplify right side
    3,980.27x = 6,320,294.23
  5. Step 5: Solve for x
    x = 6,320,294.23/3,980.27
  6. Step 6: Final answer
    x = 1,587.91

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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.