Home / 2,783.08-4,174.62-1,243

Finding the Fourth Proportional to 2,783.08, 4,174.62 and 1,243

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Solution

The fourth proportional to 2,783.08, 4,174.62 and 1,243 is: 1,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.08 : 4,174.62 = 1,243 : x
  2. Step 2: Convert to fraction form
    2,783.08/4,174.62 = 1,243/x
  3. Step 3: Cross multiply
    2,783.08x = 4,174.62 × 1,243
  4. Step 4: Simplify right side
    2,783.08x = 5,189,052.66
  5. Step 5: Solve for x
    x = 5,189,052.66/2,783.08
  6. Step 6: Final answer
    x = 1,864.50

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1.5x scale

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.