Home / 5,709.52-7,878.30-3,191.27

Finding the Fourth Proportional to 5,709.52, 7,878.30 and 3,191.27

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Solution

The fourth proportional to 5,709.52, 7,878.30 and 3,191.27 is: 4,403.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.52 : 7,878.30 = 3,191.27 : x
  2. Step 2: Convert to fraction form
    5,709.52/7,878.30 = 3,191.27/x
  3. Step 3: Cross multiply
    5,709.52x = 7,878.30 × 3,191.27
  4. Step 4: Simplify right side
    5,709.52x = 25,141,731.08
  5. Step 5: Solve for x
    x = 25,141,731.08/5,709.52
  6. Step 6: Final answer
    x = 4,403.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.