Home / 4,078.07-5,627.55-2,309.69

Finding the Fourth Proportional to 4,078.07, 5,627.55 and 2,309.69

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Solution

The fourth proportional to 4,078.07, 5,627.55 and 2,309.69 is: 3,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.07 : 5,627.55 = 2,309.69 : x
  2. Step 2: Convert to fraction form
    4,078.07/5,627.55 = 2,309.69/x
  3. Step 3: Cross multiply
    4,078.07x = 5,627.55 × 2,309.69
  4. Step 4: Simplify right side
    4,078.07x = 12,997,895.96
  5. Step 5: Solve for x
    x = 12,997,895.96/4,078.07
  6. Step 6: Final answer
    x = 3,187.27

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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.