Home / 3,979.23-5,969.13-1,057.50

Finding the Fourth Proportional to 3,979.23, 5,969.13 and 1,057.50

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Solution

The fourth proportional to 3,979.23, 5,969.13 and 1,057.50 is: 1,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.23 : 5,969.13 = 1,057.50 : x
  2. Step 2: Convert to fraction form
    3,979.23/5,969.13 = 1,057.50/x
  3. Step 3: Cross multiply
    3,979.23x = 5,969.13 × 1,057.50
  4. Step 4: Simplify right side
    3,979.23x = 6,312,354.98
  5. Step 5: Solve for x
    x = 6,312,354.98/3,979.23
  6. Step 6: Final answer
    x = 1,586.33

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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.