Home / 3,405.13-4,698.25-2,078.35

Finding the Fourth Proportional to 3,405.13, 4,698.25 and 2,078.35

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Solution

The fourth proportional to 3,405.13, 4,698.25 and 2,078.35 is: 2,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.13 : 4,698.25 = 2,078.35 : x
  2. Step 2: Convert to fraction form
    3,405.13/4,698.25 = 2,078.35/x
  3. Step 3: Cross multiply
    3,405.13x = 4,698.25 × 2,078.35
  4. Step 4: Simplify right side
    3,405.13x = 9,764,607.89
  5. Step 5: Solve for x
    x = 9,764,607.89/3,405.13
  6. Step 6: Final answer
    x = 2,867.62

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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.