Home / 2,519.80-3,779.70-2,246.20

Finding the Fourth Proportional to 2,519.80, 3,779.70 and 2,246.20

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Solution

The fourth proportional to 2,519.80, 3,779.70 and 2,246.20 is: 3,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.80 : 3,779.70 = 2,246.20 : x
  2. Step 2: Convert to fraction form
    2,519.80/3,779.70 = 2,246.20/x
  3. Step 3: Cross multiply
    2,519.80x = 3,779.70 × 2,246.20
  4. Step 4: Simplify right side
    2,519.80x = 8,489,962.14
  5. Step 5: Solve for x
    x = 8,489,962.14/2,519.80
  6. Step 6: Final answer
    x = 3,369.30

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1.5x scale

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.