Home / 4,485.78-6,729.48-1,851.84

Finding the Fourth Proportional to 4,485.78, 6,729.48 and 1,851.84

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Solution

The fourth proportional to 4,485.78, 6,729.48 and 1,851.84 is: 2,778.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.78 : 6,729.48 = 1,851.84 : x
  2. Step 2: Convert to fraction form
    4,485.78/6,729.48 = 1,851.84/x
  3. Step 3: Cross multiply
    4,485.78x = 6,729.48 × 1,851.84
  4. Step 4: Simplify right side
    4,485.78x = 12,461,920.24
  5. Step 5: Solve for x
    x = 12,461,920.24/4,485.78
  6. Step 6: Final answer
    x = 2,778.09

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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.