Home / 3,378.14-5,054.84-1,992.10

Finding the Fourth Proportional to 3,378.14, 5,054.84 and 1,992.10

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Solution

The fourth proportional to 3,378.14, 5,054.84 and 1,992.10 is: 2,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.14 : 5,054.84 = 1,992.10 : x
  2. Step 2: Convert to fraction form
    3,378.14/5,054.84 = 1,992.10/x
  3. Step 3: Cross multiply
    3,378.14x = 5,054.84 × 1,992.10
  4. Step 4: Simplify right side
    3,378.14x = 10,069,746.76
  5. Step 5: Solve for x
    x = 10,069,746.76/3,378.14
  6. Step 6: Final answer
    x = 2,980.86

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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.