Home / 1,842.90-2,764.35-1,806.45

Finding the Fourth Proportional to 1,842.90, 2,764.35 and 1,806.45

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Solution

The fourth proportional to 1,842.90, 2,764.35 and 1,806.45 is: 2,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.90 : 2,764.35 = 1,806.45 : x
  2. Step 2: Convert to fraction form
    1,842.90/2,764.35 = 1,806.45/x
  3. Step 3: Cross multiply
    1,842.90x = 2,764.35 × 1,806.45
  4. Step 4: Simplify right side
    1,842.90x = 4,993,660.06
  5. Step 5: Solve for x
    x = 4,993,660.06/1,842.90
  6. Step 6: Final answer
    x = 2,709.68

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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.