Home / 2,783.37-4,170.47-1,318.89

Finding the Fourth Proportional to 2,783.37, 4,170.47 and 1,318.89

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Solution

The fourth proportional to 2,783.37, 4,170.47 and 1,318.89 is: 1,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.37 : 4,170.47 = 1,318.89 : x
  2. Step 2: Convert to fraction form
    2,783.37/4,170.47 = 1,318.89/x
  3. Step 3: Cross multiply
    2,783.37x = 4,170.47 × 1,318.89
  4. Step 4: Simplify right side
    2,783.37x = 5,500,384.58
  5. Step 5: Solve for x
    x = 5,500,384.58/2,783.37
  6. Step 6: Final answer
    x = 1,976.16

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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.