Home / 1,819.90-2,511.69-1,034.20

Finding the Fourth Proportional to 1,819.90, 2,511.69 and 1,034.20

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Solution

The fourth proportional to 1,819.90, 2,511.69 and 1,034.20 is: 1,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.90 : 2,511.69 = 1,034.20 : x
  2. Step 2: Convert to fraction form
    1,819.90/2,511.69 = 1,034.20/x
  3. Step 3: Cross multiply
    1,819.90x = 2,511.69 × 1,034.20
  4. Step 4: Simplify right side
    1,819.90x = 2,597,589.80
  5. Step 5: Solve for x
    x = 2,597,589.80/1,819.90
  6. Step 6: Final answer
    x = 1,427.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.