Home / 2,008.58-3,012.88-1,319.60

Finding the Fourth Proportional to 2,008.58, 3,012.88 and 1,319.60

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Solution

The fourth proportional to 2,008.58, 3,012.88 and 1,319.60 is: 1,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.58 : 3,012.88 = 1,319.60 : x
  2. Step 2: Convert to fraction form
    2,008.58/3,012.88 = 1,319.60/x
  3. Step 3: Cross multiply
    2,008.58x = 3,012.88 × 1,319.60
  4. Step 4: Simplify right side
    2,008.58x = 3,975,796.45
  5. Step 5: Solve for x
    x = 3,975,796.45/2,008.58
  6. Step 6: Final answer
    x = 1,979.41

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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.