Home / 1,783.45-2,672.41-1,236.70

Finding the Fourth Proportional to 1,783.45, 2,672.41 and 1,236.70

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Solution

The fourth proportional to 1,783.45, 2,672.41 and 1,236.70 is: 1,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783.45 : 2,672.41 = 1,236.70 : x
  2. Step 2: Convert to fraction form
    1,783.45/2,672.41 = 1,236.70/x
  3. Step 3: Cross multiply
    1,783.45x = 2,672.41 × 1,236.70
  4. Step 4: Simplify right side
    1,783.45x = 3,304,969.45
  5. Step 5: Solve for x
    x = 3,304,969.45/1,783.45
  6. Step 6: Final answer
    x = 1,853.13

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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.