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Finding the Fourth Proportional to 3,391, 4,679.19 and 1,975.00

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Solution

The fourth proportional to 3,391, 4,679.19 and 1,975.00 is: 2,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391 : 4,679.19 = 1,975.00 : x
  2. Step 2: Convert to fraction form
    3,391/4,679.19 = 1,975.00/x
  3. Step 3: Cross multiply
    3,391x = 4,679.19 × 1,975.00
  4. Step 4: Simplify right side
    3,391x = 9,241,378.68
  5. Step 5: Solve for x
    x = 9,241,378.68/3,391
  6. Step 6: Final answer
    x = 2,725.27

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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.