Home / 2,449.76-3,378.38-1,889.35

Finding the Fourth Proportional to 2,449.76, 3,378.38 and 1,889.35

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Solution

The fourth proportional to 2,449.76, 3,378.38 and 1,889.35 is: 2,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.76 : 3,378.38 = 1,889.35 : x
  2. Step 2: Convert to fraction form
    2,449.76/3,378.38 = 1,889.35/x
  3. Step 3: Cross multiply
    2,449.76x = 3,378.38 × 1,889.35
  4. Step 4: Simplify right side
    2,449.76x = 6,382,924.36
  5. Step 5: Solve for x
    x = 6,382,924.36/2,449.76
  6. Step 6: Final answer
    x = 2,605.54

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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.