Home / 3,047.06-4,205.55-1,999.10

Finding the Fourth Proportional to 3,047.06, 4,205.55 and 1,999.10

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Solution

The fourth proportional to 3,047.06, 4,205.55 and 1,999.10 is: 2,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.06 : 4,205.55 = 1,999.10 : x
  2. Step 2: Convert to fraction form
    3,047.06/4,205.55 = 1,999.10/x
  3. Step 3: Cross multiply
    3,047.06x = 4,205.55 × 1,999.10
  4. Step 4: Simplify right side
    3,047.06x = 8,407,315.01
  5. Step 5: Solve for x
    x = 8,407,315.01/3,047.06
  6. Step 6: Final answer
    x = 2,759.16

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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.