Home / 2,784.47-4,178.73-2,243.19

Finding the Fourth Proportional to 2,784.47, 4,178.73 and 2,243.19

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Solution

The fourth proportional to 2,784.47, 4,178.73 and 2,243.19 is: 3,366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.47 : 4,178.73 = 2,243.19 : x
  2. Step 2: Convert to fraction form
    2,784.47/4,178.73 = 2,243.19/x
  3. Step 3: Cross multiply
    2,784.47x = 4,178.73 × 2,243.19
  4. Step 4: Simplify right side
    2,784.47x = 9,373,685.35
  5. Step 5: Solve for x
    x = 9,373,685.35/2,784.47
  6. Step 6: Final answer
    x = 3,366.42

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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.