Home / 3,391.48-4,679.61-1,975.33

Finding the Fourth Proportional to 3,391.48, 4,679.61 and 1,975.33

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Solution

The fourth proportional to 3,391.48, 4,679.61 and 1,975.33 is: 2,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.48 : 4,679.61 = 1,975.33 : x
  2. Step 2: Convert to fraction form
    3,391.48/4,679.61 = 1,975.33/x
  3. Step 3: Cross multiply
    3,391.48x = 4,679.61 × 1,975.33
  4. Step 4: Simplify right side
    3,391.48x = 9,243,774.02
  5. Step 5: Solve for x
    x = 9,243,774.02/3,391.48
  6. Step 6: Final answer
    x = 2,725.59

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1.5x scale

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.