Home / 1,918.52-2,644.77-1,270.67

Finding the Fourth Proportional to 1,918.52, 2,644.77 and 1,270.67

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Solution

The fourth proportional to 1,918.52, 2,644.77 and 1,270.67 is: 1,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.52 : 2,644.77 = 1,270.67 : x
  2. Step 2: Convert to fraction form
    1,918.52/2,644.77 = 1,270.67/x
  3. Step 3: Cross multiply
    1,918.52x = 2,644.77 × 1,270.67
  4. Step 4: Simplify right side
    1,918.52x = 3,360,621.44
  5. Step 5: Solve for x
    x = 3,360,621.44/1,918.52
  6. Step 6: Final answer
    x = 1,751.68

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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.