Home / 2,449.08-3,379.44-1,440.60

Finding the Fourth Proportional to 2,449.08, 3,379.44 and 1,440.60

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Solution

The fourth proportional to 2,449.08, 3,379.44 and 1,440.60 is: 1,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.08 : 3,379.44 = 1,440.60 : x
  2. Step 2: Convert to fraction form
    2,449.08/3,379.44 = 1,440.60/x
  3. Step 3: Cross multiply
    2,449.08x = 3,379.44 × 1,440.60
  4. Step 4: Simplify right side
    2,449.08x = 4,868,421.26
  5. Step 5: Solve for x
    x = 4,868,421.26/2,449.08
  6. Step 6: Final answer
    x = 1,987.86

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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.