Home / 1,780.44-2,456.10-1,485.60

Finding the Fourth Proportional to 1,780.44, 2,456.10 and 1,485.60

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Solution

The fourth proportional to 1,780.44, 2,456.10 and 1,485.60 is: 2,049.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.44 : 2,456.10 = 1,485.60 : x
  2. Step 2: Convert to fraction form
    1,780.44/2,456.10 = 1,485.60/x
  3. Step 3: Cross multiply
    1,780.44x = 2,456.10 × 1,485.60
  4. Step 4: Simplify right side
    1,780.44x = 3,648,782.16
  5. Step 5: Solve for x
    x = 3,648,782.16/1,780.44
  6. Step 6: Final answer
    x = 2,049.37

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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.