Home / 1,890.44-2,609-1,104.72

Finding the Fourth Proportional to 1,890.44, 2,609 and 1,104.72

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Solution

The fourth proportional to 1,890.44, 2,609 and 1,104.72 is: 1,524.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.44 : 2,609 = 1,104.72 : x
  2. Step 2: Convert to fraction form
    1,890.44/2,609 = 1,104.72/x
  3. Step 3: Cross multiply
    1,890.44x = 2,609 × 1,104.72
  4. Step 4: Simplify right side
    1,890.44x = 2,882,214.48
  5. Step 5: Solve for x
    x = 2,882,214.48/1,890.44
  6. Step 6: Final answer
    x = 1,524.63

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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.