Home / 2,743.12-3,784.80-1,548.28

Finding the Fourth Proportional to 2,743.12, 3,784.80 and 1,548.28

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Solution

The fourth proportional to 2,743.12, 3,784.80 and 1,548.28 is: 2,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.12 : 3,784.80 = 1,548.28 : x
  2. Step 2: Convert to fraction form
    2,743.12/3,784.80 = 1,548.28/x
  3. Step 3: Cross multiply
    2,743.12x = 3,784.80 × 1,548.28
  4. Step 4: Simplify right side
    2,743.12x = 5,859,930.14
  5. Step 5: Solve for x
    x = 5,859,930.14/2,743.12
  6. Step 6: Final answer
    x = 2,136.23

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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.