Home / 4,078.21-5,628.93-2,310.86

Finding the Fourth Proportional to 4,078.21, 5,628.93 and 2,310.86

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Solution

The fourth proportional to 4,078.21, 5,628.93 and 2,310.86 is: 3,189.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.21 : 5,628.93 = 2,310.86 : x
  2. Step 2: Convert to fraction form
    4,078.21/5,628.93 = 2,310.86/x
  3. Step 3: Cross multiply
    4,078.21x = 5,628.93 × 2,310.86
  4. Step 4: Simplify right side
    4,078.21x = 13,007,669.18
  5. Step 5: Solve for x
    x = 13,007,669.18/4,078.21
  6. Step 6: Final answer
    x = 3,189.55

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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.