Home / 2,743.36-3,787.57-1,903.80

Finding the Fourth Proportional to 2,743.36, 3,787.57 and 1,903.80

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Solution

The fourth proportional to 2,743.36, 3,787.57 and 1,903.80 is: 2,628.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.36 : 3,787.57 = 1,903.80 : x
  2. Step 2: Convert to fraction form
    2,743.36/3,787.57 = 1,903.80/x
  3. Step 3: Cross multiply
    2,743.36x = 3,787.57 × 1,903.80
  4. Step 4: Simplify right side
    2,743.36x = 7,210,775.77
  5. Step 5: Solve for x
    x = 7,210,775.77/2,743.36
  6. Step 6: Final answer
    x = 2,628.45

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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.