Home / 3,720.12-5,579.98-2,071.60

Finding the Fourth Proportional to 3,720.12, 5,579.98 and 2,071.60

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Solution

The fourth proportional to 3,720.12, 5,579.98 and 2,071.60 is: 3,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.12 : 5,579.98 = 2,071.60 : x
  2. Step 2: Convert to fraction form
    3,720.12/5,579.98 = 2,071.60/x
  3. Step 3: Cross multiply
    3,720.12x = 5,579.98 × 2,071.60
  4. Step 4: Simplify right side
    3,720.12x = 11,559,486.57
  5. Step 5: Solve for x
    x = 11,559,486.57/3,720.12
  6. Step 6: Final answer
    x = 3,107.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.