Home / 2,889.48-4,325.58-1,861.32

Finding the Fourth Proportional to 2,889.48, 4,325.58 and 1,861.32

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Solution

The fourth proportional to 2,889.48, 4,325.58 and 1,861.32 is: 2,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.48 : 4,325.58 = 1,861.32 : x
  2. Step 2: Convert to fraction form
    2,889.48/4,325.58 = 1,861.32/x
  3. Step 3: Cross multiply
    2,889.48x = 4,325.58 × 1,861.32
  4. Step 4: Simplify right side
    2,889.48x = 8,051,288.57
  5. Step 5: Solve for x
    x = 8,051,288.57/2,889.48
  6. Step 6: Final answer
    x = 2,786.41

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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.