Home / 2,842.28-4,263.42-1,109.69

Finding the Fourth Proportional to 2,842.28, 4,263.42 and 1,109.69

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Solution

The fourth proportional to 2,842.28, 4,263.42 and 1,109.69 is: 1,664.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.28 : 4,263.42 = 1,109.69 : x
  2. Step 2: Convert to fraction form
    2,842.28/4,263.42 = 1,109.69/x
  3. Step 3: Cross multiply
    2,842.28x = 4,263.42 × 1,109.69
  4. Step 4: Simplify right side
    2,842.28x = 4,731,063.88
  5. Step 5: Solve for x
    x = 4,731,063.88/2,842.28
  6. Step 6: Final answer
    x = 1,664.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.