Home / 4,077.30-6,111.90-1,995.60

Finding the Fourth Proportional to 4,077.30, 6,111.90 and 1,995.60

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Solution

The fourth proportional to 4,077.30, 6,111.90 and 1,995.60 is: 2,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.30 : 6,111.90 = 1,995.60 : x
  2. Step 2: Convert to fraction form
    4,077.30/6,111.90 = 1,995.60/x
  3. Step 3: Cross multiply
    4,077.30x = 6,111.90 × 1,995.60
  4. Step 4: Simplify right side
    4,077.30x = 12,196,907.64
  5. Step 5: Solve for x
    x = 12,196,907.64/4,077.30
  6. Step 6: Final answer
    x = 2,991.42

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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.