Home / 1,889.10-2,607.50-1,260.54

Finding the Fourth Proportional to 1,889.10, 2,607.50 and 1,260.54

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Solution

The fourth proportional to 1,889.10, 2,607.50 and 1,260.54 is: 1,739.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.10 : 2,607.50 = 1,260.54 : x
  2. Step 2: Convert to fraction form
    1,889.10/2,607.50 = 1,260.54/x
  3. Step 3: Cross multiply
    1,889.10x = 2,607.50 × 1,260.54
  4. Step 4: Simplify right side
    1,889.10x = 3,286,858.05
  5. Step 5: Solve for x
    x = 3,286,858.05/1,889.10
  6. Step 6: Final answer
    x = 1,739.91

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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.