Home / 1,890.19-2,609.18-1,104.49

Finding the Fourth Proportional to 1,890.19, 2,609.18 and 1,104.49

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Solution

The fourth proportional to 1,890.19, 2,609.18 and 1,104.49 is: 1,524.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.19 : 2,609.18 = 1,104.49 : x
  2. Step 2: Convert to fraction form
    1,890.19/2,609.18 = 1,104.49/x
  3. Step 3: Cross multiply
    1,890.19x = 2,609.18 × 1,104.49
  4. Step 4: Simplify right side
    1,890.19x = 2,881,813.22
  5. Step 5: Solve for x
    x = 2,881,813.22/1,890.19
  6. Step 6: Final answer
    x = 1,524.62

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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.