Home / 4,284.20-6,431.12-3,314.60

Finding the Fourth Proportional to 4,284.20, 6,431.12 and 3,314.60

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Solution

The fourth proportional to 4,284.20, 6,431.12 and 3,314.60 is: 4,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.20 : 6,431.12 = 3,314.60 : x
  2. Step 2: Convert to fraction form
    4,284.20/6,431.12 = 3,314.60/x
  3. Step 3: Cross multiply
    4,284.20x = 6,431.12 × 3,314.60
  4. Step 4: Simplify right side
    4,284.20x = 21,316,590.35
  5. Step 5: Solve for x
    x = 21,316,590.35/4,284.20
  6. Step 6: Final answer
    x = 4,975.63

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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.