Home / 1,890.88-2,609.30-1,051.54

Finding the Fourth Proportional to 1,890.88, 2,609.30 and 1,051.54

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Solution

The fourth proportional to 1,890.88, 2,609.30 and 1,051.54 is: 1,451.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.88 : 2,609.30 = 1,051.54 : x
  2. Step 2: Convert to fraction form
    1,890.88/2,609.30 = 1,051.54/x
  3. Step 3: Cross multiply
    1,890.88x = 2,609.30 × 1,051.54
  4. Step 4: Simplify right side
    1,890.88x = 2,743,783.32
  5. Step 5: Solve for x
    x = 2,743,783.32/1,890.88
  6. Step 6: Final answer
    x = 1,451.06

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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.