Home / 3,578.06-4,939.58-2,779.60

Finding the Fourth Proportional to 3,578.06, 4,939.58 and 2,779.60

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Solution

The fourth proportional to 3,578.06, 4,939.58 and 2,779.60 is: 3,837.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.06 : 4,939.58 = 2,779.60 : x
  2. Step 2: Convert to fraction form
    3,578.06/4,939.58 = 2,779.60/x
  3. Step 3: Cross multiply
    3,578.06x = 4,939.58 × 2,779.60
  4. Step 4: Simplify right side
    3,578.06x = 13,730,056.57
  5. Step 5: Solve for x
    x = 13,730,056.57/3,578.06
  6. Step 6: Final answer
    x = 3,837.29

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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.