Home / 3,914.75-5,370.19-3,702.91

Finding the Fourth Proportional to 3,914.75, 5,370.19 and 3,702.91

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Solution

The fourth proportional to 3,914.75, 5,370.19 and 3,702.91 is: 5,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.75 : 5,370.19 = 3,702.91 : x
  2. Step 2: Convert to fraction form
    3,914.75/5,370.19 = 3,702.91/x
  3. Step 3: Cross multiply
    3,914.75x = 5,370.19 × 3,702.91
  4. Step 4: Simplify right side
    3,914.75x = 19,885,284.89
  5. Step 5: Solve for x
    x = 19,885,284.89/3,914.75
  6. Step 6: Final answer
    x = 5,079.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.