Home / 4,213.08-6,314.58-2,978.64

Finding the Fourth Proportional to 4,213.08, 6,314.58 and 2,978.64

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Solution

The fourth proportional to 4,213.08, 6,314.58 and 2,978.64 is: 4,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.08 : 6,314.58 = 2,978.64 : x
  2. Step 2: Convert to fraction form
    4,213.08/6,314.58 = 2,978.64/x
  3. Step 3: Cross multiply
    4,213.08x = 6,314.58 × 2,978.64
  4. Step 4: Simplify right side
    4,213.08x = 18,808,860.57
  5. Step 5: Solve for x
    x = 18,808,860.57/4,213.08
  6. Step 6: Final answer
    x = 4,464.40

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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.