Home / 2,080.23-3,119.48-846.80

Finding the Fourth Proportional to 2,080.23, 3,119.48 and 846.80

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Solution

The fourth proportional to 2,080.23, 3,119.48 and 846.80 is: 1,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.23 : 3,119.48 = 846.80 : x
  2. Step 2: Convert to fraction form
    2,080.23/3,119.48 = 846.80/x
  3. Step 3: Cross multiply
    2,080.23x = 3,119.48 × 846.80
  4. Step 4: Simplify right side
    2,080.23x = 2,641,575.66
  5. Step 5: Solve for x
    x = 2,641,575.66/2,080.23
  6. Step 6: Final answer
    x = 1,269.85

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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.