Home / 4,949.35-7,421.85-1,485.79

Finding the Fourth Proportional to 4,949.35, 7,421.85 and 1,485.79

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Solution

The fourth proportional to 4,949.35, 7,421.85 and 1,485.79 is: 2,228.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.35 : 7,421.85 = 1,485.79 : x
  2. Step 2: Convert to fraction form
    4,949.35/7,421.85 = 1,485.79/x
  3. Step 3: Cross multiply
    4,949.35x = 7,421.85 × 1,485.79
  4. Step 4: Simplify right side
    4,949.35x = 11,027,310.51
  5. Step 5: Solve for x
    x = 11,027,310.51/4,949.35
  6. Step 6: Final answer
    x = 2,228.03

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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.