Home / 5,040.36-7,560.74-1,919.30

Finding the Fourth Proportional to 5,040.36, 7,560.74 and 1,919.30

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Solution

The fourth proportional to 5,040.36, 7,560.74 and 1,919.30 is: 2,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.36 : 7,560.74 = 1,919.30 : x
  2. Step 2: Convert to fraction form
    5,040.36/7,560.74 = 1,919.30/x
  3. Step 3: Cross multiply
    5,040.36x = 7,560.74 × 1,919.30
  4. Step 4: Simplify right side
    5,040.36x = 14,511,295.28
  5. Step 5: Solve for x
    x = 14,511,295.28/5,040.36
  6. Step 6: Final answer
    x = 2,879.02

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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.