Home / 2,189,135.52-3,020,209.20-1,283,542.56

Finding the Fourth Proportional to 2,189,135.52, 3,020,209.20 and 1,283,542.56

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Solution

The fourth proportional to 2,189,135.52, 3,020,209.20 and 1,283,542.56 is: 1,770,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,135.52 : 3,020,209.20 = 1,283,542.56 : x
  2. Step 2: Convert to fraction form
    2,189,135.52/3,020,209.20 = 1,283,542.56/x
  3. Step 3: Cross multiply
    2,189,135.52x = 3,020,209.20 × 1,283,542.56
  4. Step 4: Simplify right side
    2,189,135.52x = 3,876,567,048,303.55
  5. Step 5: Solve for x
    x = 3,876,567,048,303.55/2,189,135.52
  6. Step 6: Final answer
    x = 1,770,820.95

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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.