Home / 1,370.80-2,057.10-1,365.76

Finding the Fourth Proportional to 1,370.80, 2,057.10 and 1,365.76

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Solution

The fourth proportional to 1,370.80, 2,057.10 and 1,365.76 is: 2,049.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.80 : 2,057.10 = 1,365.76 : x
  2. Step 2: Convert to fraction form
    1,370.80/2,057.10 = 1,365.76/x
  3. Step 3: Cross multiply
    1,370.80x = 2,057.10 × 1,365.76
  4. Step 4: Simplify right side
    1,370.80x = 2,809,504.90
  5. Step 5: Solve for x
    x = 2,809,504.90/1,370.80
  6. Step 6: Final answer
    x = 2,049.54

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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.