Home / 3,119.08-4,677.78-1,269.64

Finding the Fourth Proportional to 3,119.08, 4,677.78 and 1,269.64

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Solution

The fourth proportional to 3,119.08, 4,677.78 and 1,269.64 is: 1,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.08 : 4,677.78 = 1,269.64 : x
  2. Step 2: Convert to fraction form
    3,119.08/4,677.78 = 1,269.64/x
  3. Step 3: Cross multiply
    3,119.08x = 4,677.78 × 1,269.64
  4. Step 4: Simplify right side
    3,119.08x = 5,939,096.60
  5. Step 5: Solve for x
    x = 5,939,096.60/3,119.08
  6. Step 6: Final answer
    x = 1,904.12

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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.