Home / 2,883.95-3,979.43-1,889.10

Finding the Fourth Proportional to 2,883.95, 3,979.43 and 1,889.10

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Solution

The fourth proportional to 2,883.95, 3,979.43 and 1,889.10 is: 2,606.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.95 : 3,979.43 = 1,889.10 : x
  2. Step 2: Convert to fraction form
    2,883.95/3,979.43 = 1,889.10/x
  3. Step 3: Cross multiply
    2,883.95x = 3,979.43 × 1,889.10
  4. Step 4: Simplify right side
    2,883.95x = 7,517,527.66
  5. Step 5: Solve for x
    x = 7,517,527.66/2,883.95
  6. Step 6: Final answer
    x = 2,606.67

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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.