Home / 2,976.62-4,106.55-1,914.23

Finding the Fourth Proportional to 2,976.62, 4,106.55 and 1,914.23

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Solution

The fourth proportional to 2,976.62, 4,106.55 and 1,914.23 is: 2,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.62 : 4,106.55 = 1,914.23 : x
  2. Step 2: Convert to fraction form
    2,976.62/4,106.55 = 1,914.23/x
  3. Step 3: Cross multiply
    2,976.62x = 4,106.55 × 1,914.23
  4. Step 4: Simplify right side
    2,976.62x = 7,860,881.21
  5. Step 5: Solve for x
    x = 7,860,881.21/2,976.62
  6. Step 6: Final answer
    x = 2,640.87

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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.