Home / 2,209.21-3,048.19-1,325.30

Finding the Fourth Proportional to 2,209.21, 3,048.19 and 1,325.30

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Solution

The fourth proportional to 2,209.21, 3,048.19 and 1,325.30 is: 1,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.21 : 3,048.19 = 1,325.30 : x
  2. Step 2: Convert to fraction form
    2,209.21/3,048.19 = 1,325.30/x
  3. Step 3: Cross multiply
    2,209.21x = 3,048.19 × 1,325.30
  4. Step 4: Simplify right side
    2,209.21x = 4,039,747.65
  5. Step 5: Solve for x
    x = 4,039,747.65/2,209.21
  6. Step 6: Final answer
    x = 1,828.60

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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.