Home / 2,743.36-3,784.84-1,857.76

Finding the Fourth Proportional to 2,743.36, 3,784.84 and 1,857.76

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Solution

The fourth proportional to 2,743.36, 3,784.84 and 1,857.76 is: 2,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.36 : 3,784.84 = 1,857.76 : x
  2. Step 2: Convert to fraction form
    2,743.36/3,784.84 = 1,857.76/x
  3. Step 3: Cross multiply
    2,743.36x = 3,784.84 × 1,857.76
  4. Step 4: Simplify right side
    2,743.36x = 7,031,324.36
  5. Step 5: Solve for x
    x = 7,031,324.36/2,743.36
  6. Step 6: Final answer
    x = 2,563.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.