Home / 2,830.66-4,245.36-1,189.06

Finding the Fourth Proportional to 2,830.66, 4,245.36 and 1,189.06

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Solution

The fourth proportional to 2,830.66, 4,245.36 and 1,189.06 is: 1,783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.66 : 4,245.36 = 1,189.06 : x
  2. Step 2: Convert to fraction form
    2,830.66/4,245.36 = 1,189.06/x
  3. Step 3: Cross multiply
    2,830.66x = 4,245.36 × 1,189.06
  4. Step 4: Simplify right side
    2,830.66x = 5,047,987.76
  5. Step 5: Solve for x
    x = 5,047,987.76/2,830.66
  6. Step 6: Final answer
    x = 1,783.33

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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.