Home / 3,391.95-4,680.75-1,975.68

Finding the Fourth Proportional to 3,391.95, 4,680.75 and 1,975.68

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Solution

The fourth proportional to 3,391.95, 4,680.75 and 1,975.68 is: 2,726.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.95 : 4,680.75 = 1,975.68 : x
  2. Step 2: Convert to fraction form
    3,391.95/4,680.75 = 1,975.68/x
  3. Step 3: Cross multiply
    3,391.95x = 4,680.75 × 1,975.68
  4. Step 4: Simplify right side
    3,391.95x = 9,247,658.31
  5. Step 5: Solve for x
    x = 9,247,658.31/3,391.95
  6. Step 6: Final answer
    x = 2,726.36

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Double scale
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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.