Home / 2,975.26-4,107.72-1,913.50

Finding the Fourth Proportional to 2,975.26, 4,107.72 and 1,913.50

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Solution

The fourth proportional to 2,975.26, 4,107.72 and 1,913.50 is: 2,641.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.26 : 4,107.72 = 1,913.50 : x
  2. Step 2: Convert to fraction form
    2,975.26/4,107.72 = 1,913.50/x
  3. Step 3: Cross multiply
    2,975.26x = 4,107.72 × 1,913.50
  4. Step 4: Simplify right side
    2,975.26x = 7,860,122.22
  5. Step 5: Solve for x
    x = 7,860,122.22/2,975.26
  6. Step 6: Final answer
    x = 2,641.83

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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.