Home / 3,370.74-5,054.70-1,986.86

Finding the Fourth Proportional to 3,370.74, 5,054.70 and 1,986.86

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Solution

The fourth proportional to 3,370.74, 5,054.70 and 1,986.86 is: 2,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.74 : 5,054.70 = 1,986.86 : x
  2. Step 2: Convert to fraction form
    3,370.74/5,054.70 = 1,986.86/x
  3. Step 3: Cross multiply
    3,370.74x = 5,054.70 × 1,986.86
  4. Step 4: Simplify right side
    3,370.74x = 10,042,981.24
  5. Step 5: Solve for x
    x = 10,042,981.24/3,370.74
  6. Step 6: Final answer
    x = 2,979.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.