Home / 6,879.45-10,319.21-2,930.15

Finding the Fourth Proportional to 6,879.45, 10,319.21 and 2,930.15

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Solution

The fourth proportional to 6,879.45, 10,319.21 and 2,930.15 is: 4,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.45 : 10,319.21 = 2,930.15 : x
  2. Step 2: Convert to fraction form
    6,879.45/10,319.21 = 2,930.15/x
  3. Step 3: Cross multiply
    6,879.45x = 10,319.21 × 2,930.15
  4. Step 4: Simplify right side
    6,879.45x = 30,236,833.18
  5. Step 5: Solve for x
    x = 30,236,833.18/6,879.45
  6. Step 6: Final answer
    x = 4,395.24

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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.