Home / 1,880.92-2,821.30-1,116.28

Finding the Fourth Proportional to 1,880.92, 2,821.30 and 1,116.28

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Solution

The fourth proportional to 1,880.92, 2,821.30 and 1,116.28 is: 1,674.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.92 : 2,821.30 = 1,116.28 : x
  2. Step 2: Convert to fraction form
    1,880.92/2,821.30 = 1,116.28/x
  3. Step 3: Cross multiply
    1,880.92x = 2,821.30 × 1,116.28
  4. Step 4: Simplify right side
    1,880.92x = 3,149,360.76
  5. Step 5: Solve for x
    x = 3,149,360.76/1,880.92
  6. Step 6: Final answer
    x = 1,674.37

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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.