Home / 6,408-8,844.84-4,287.60

Finding the Fourth Proportional to 6,408, 8,844.84 and 4,287.60

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Solution

The fourth proportional to 6,408, 8,844.84 and 4,287.60 is: 5,918.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408 : 8,844.84 = 4,287.60 : x
  2. Step 2: Convert to fraction form
    6,408/8,844.84 = 4,287.60/x
  3. Step 3: Cross multiply
    6,408x = 8,844.84 × 4,287.60
  4. Step 4: Simplify right side
    6,408x = 37,923,135.98
  5. Step 5: Solve for x
    x = 37,923,135.98/6,408
  6. Step 6: Final answer
    x = 5,918.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.