Home / 1,628.82-2,245.66-1,038.33

Finding the Fourth Proportional to 1,628.82, 2,245.66 and 1,038.33

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Solution

The fourth proportional to 1,628.82, 2,245.66 and 1,038.33 is: 1,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.82 : 2,245.66 = 1,038.33 : x
  2. Step 2: Convert to fraction form
    1,628.82/2,245.66 = 1,038.33/x
  3. Step 3: Cross multiply
    1,628.82x = 2,245.66 × 1,038.33
  4. Step 4: Simplify right side
    1,628.82x = 2,331,733.55
  5. Step 5: Solve for x
    x = 2,331,733.55/1,628.82
  6. Step 6: Final answer
    x = 1,431.55

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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.