Home / 6,284.20-9,418.20-2,990.20

Finding the Fourth Proportional to 6,284.20, 9,418.20 and 2,990.20

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Solution

The fourth proportional to 6,284.20, 9,418.20 and 2,990.20 is: 4,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,284.20 : 9,418.20 = 2,990.20 : x
  2. Step 2: Convert to fraction form
    6,284.20/9,418.20 = 2,990.20/x
  3. Step 3: Cross multiply
    6,284.20x = 9,418.20 × 2,990.20
  4. Step 4: Simplify right side
    6,284.20x = 28,162,301.64
  5. Step 5: Solve for x
    x = 28,162,301.64/6,284.20
  6. Step 6: Final answer
    x = 4,481.45

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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.