Home / 2,883.78-4,328.42-1,790.28

Finding the Fourth Proportional to 2,883.78, 4,328.42 and 1,790.28

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Solution

The fourth proportional to 2,883.78, 4,328.42 and 1,790.28 is: 2,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.78 : 4,328.42 = 1,790.28 : x
  2. Step 2: Convert to fraction form
    2,883.78/4,328.42 = 1,790.28/x
  3. Step 3: Cross multiply
    2,883.78x = 4,328.42 × 1,790.28
  4. Step 4: Simplify right side
    2,883.78x = 7,749,074.81
  5. Step 5: Solve for x
    x = 7,749,074.81/2,883.78
  6. Step 6: Final answer
    x = 2,687.12

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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.