Home / 3,105.41-4,285.48-1,779.24

Finding the Fourth Proportional to 3,105.41, 4,285.48 and 1,779.24

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Solution

The fourth proportional to 3,105.41, 4,285.48 and 1,779.24 is: 2,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.41 : 4,285.48 = 1,779.24 : x
  2. Step 2: Convert to fraction form
    3,105.41/4,285.48 = 1,779.24/x
  3. Step 3: Cross multiply
    3,105.41x = 4,285.48 × 1,779.24
  4. Step 4: Simplify right side
    3,105.41x = 7,624,897.44
  5. Step 5: Solve for x
    x = 7,624,897.44/3,105.41
  6. Step 6: Final answer
    x = 2,455.36

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Find fourth proportional to 3,106.41, 4,286.86 and 1,780.24
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1.5x scale

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.