Home / 4,078.35-5,628.69-2,309.95

Finding the Fourth Proportional to 4,078.35, 5,628.69 and 2,309.95

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Solution

The fourth proportional to 4,078.35, 5,628.69 and 2,309.95 is: 3,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.35 : 5,628.69 = 2,309.95 : x
  2. Step 2: Convert to fraction form
    4,078.35/5,628.69 = 2,309.95/x
  3. Step 3: Cross multiply
    4,078.35x = 5,628.69 × 2,309.95
  4. Step 4: Simplify right side
    4,078.35x = 13,001,980.92
  5. Step 5: Solve for x
    x = 13,001,980.92/4,078.35
  6. Step 6: Final answer
    x = 3,188.05

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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.