Home / 1,890.59-2,609.38-1,294.29

Finding the Fourth Proportional to 1,890.59, 2,609.38 and 1,294.29

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Solution

The fourth proportional to 1,890.59, 2,609.38 and 1,294.29 is: 1,786.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.59 : 2,609.38 = 1,294.29 : x
  2. Step 2: Convert to fraction form
    1,890.59/2,609.38 = 1,294.29/x
  3. Step 3: Cross multiply
    1,890.59x = 2,609.38 × 1,294.29
  4. Step 4: Simplify right side
    1,890.59x = 3,377,294.44
  5. Step 5: Solve for x
    x = 3,377,294.44/1,890.59
  6. Step 6: Final answer
    x = 1,786.37

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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.