Home / 6,298.40-9,448.60-2,138.80

Finding the Fourth Proportional to 6,298.40, 9,448.60 and 2,138.80

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Solution

The fourth proportional to 6,298.40, 9,448.60 and 2,138.80 is: 3,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,298.40 : 9,448.60 = 2,138.80 : x
  2. Step 2: Convert to fraction form
    6,298.40/9,448.60 = 2,138.80/x
  3. Step 3: Cross multiply
    6,298.40x = 9,448.60 × 2,138.80
  4. Step 4: Simplify right side
    6,298.40x = 20,208,665.68
  5. Step 5: Solve for x
    x = 20,208,665.68/6,298.40
  6. Step 6: Final answer
    x = 3,208.54

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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.