Home / 3,979.83-5,970.96-1,384.59

Finding the Fourth Proportional to 3,979.83, 5,970.96 and 1,384.59

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Solution

The fourth proportional to 3,979.83, 5,970.96 and 1,384.59 is: 2,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.83 : 5,970.96 = 1,384.59 : x
  2. Step 2: Convert to fraction form
    3,979.83/5,970.96 = 1,384.59/x
  3. Step 3: Cross multiply
    3,979.83x = 5,970.96 × 1,384.59
  4. Step 4: Simplify right side
    3,979.83x = 8,267,331.51
  5. Step 5: Solve for x
    x = 8,267,331.51/3,979.83
  6. Step 6: Final answer
    x = 2,077.31

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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.