Home / 1,830.50-2,738.87-1,283.75

Finding the Fourth Proportional to 1,830.50, 2,738.87 and 1,283.75

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Solution

The fourth proportional to 1,830.50, 2,738.87 and 1,283.75 is: 1,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.50 : 2,738.87 = 1,283.75 : x
  2. Step 2: Convert to fraction form
    1,830.50/2,738.87 = 1,283.75/x
  3. Step 3: Cross multiply
    1,830.50x = 2,738.87 × 1,283.75
  4. Step 4: Simplify right side
    1,830.50x = 3,516,017.94
  5. Step 5: Solve for x
    x = 3,516,017.94/1,830.50
  6. Step 6: Final answer
    x = 1,920.80

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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.