Home / 1,890.49-2,608.81-1,093.81

Finding the Fourth Proportional to 1,890.49, 2,608.81 and 1,093.81

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Solution

The fourth proportional to 1,890.49, 2,608.81 and 1,093.81 is: 1,509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.49 : 2,608.81 = 1,093.81 : x
  2. Step 2: Convert to fraction form
    1,890.49/2,608.81 = 1,093.81/x
  3. Step 3: Cross multiply
    1,890.49x = 2,608.81 × 1,093.81
  4. Step 4: Simplify right side
    1,890.49x = 2,853,542.47
  5. Step 5: Solve for x
    x = 2,853,542.47/1,890.49
  6. Step 6: Final answer
    x = 1,509.42

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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.