Home / 3,010.40-4,515.60-2,645.90

Finding the Fourth Proportional to 3,010.40, 4,515.60 and 2,645.90

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Solution

The fourth proportional to 3,010.40, 4,515.60 and 2,645.90 is: 3,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.40 : 4,515.60 = 2,645.90 : x
  2. Step 2: Convert to fraction form
    3,010.40/4,515.60 = 2,645.90/x
  3. Step 3: Cross multiply
    3,010.40x = 4,515.60 × 2,645.90
  4. Step 4: Simplify right side
    3,010.40x = 11,947,826.04
  5. Step 5: Solve for x
    x = 11,947,826.04/3,010.40
  6. Step 6: Final answer
    x = 3,968.85

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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.