Home / 2,904.80-4,346.40-2,645.60

Finding the Fourth Proportional to 2,904.80, 4,346.40 and 2,645.60

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Solution

The fourth proportional to 2,904.80, 4,346.40 and 2,645.60 is: 3,958.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.80 : 4,346.40 = 2,645.60 : x
  2. Step 2: Convert to fraction form
    2,904.80/4,346.40 = 2,645.60/x
  3. Step 3: Cross multiply
    2,904.80x = 4,346.40 × 2,645.60
  4. Step 4: Simplify right side
    2,904.80x = 11,498,835.84
  5. Step 5: Solve for x
    x = 11,498,835.84/2,904.80
  6. Step 6: Final answer
    x = 3,958.56

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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.