Home / 3,710.16-5,120.26-2,138.35

Finding the Fourth Proportional to 3,710.16, 5,120.26 and 2,138.35

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Solution

The fourth proportional to 3,710.16, 5,120.26 and 2,138.35 is: 2,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.16 : 5,120.26 = 2,138.35 : x
  2. Step 2: Convert to fraction form
    3,710.16/5,120.26 = 2,138.35/x
  3. Step 3: Cross multiply
    3,710.16x = 5,120.26 × 2,138.35
  4. Step 4: Simplify right side
    3,710.16x = 10,948,907.97
  5. Step 5: Solve for x
    x = 10,948,907.97/3,710.16
  6. Step 6: Final answer
    x = 2,951.06

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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.