Home / 3,495.26-5,236.40-2,678.78

Finding the Fourth Proportional to 3,495.26, 5,236.40 and 2,678.78

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Solution

The fourth proportional to 3,495.26, 5,236.40 and 2,678.78 is: 4,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.26 : 5,236.40 = 2,678.78 : x
  2. Step 2: Convert to fraction form
    3,495.26/5,236.40 = 2,678.78/x
  3. Step 3: Cross multiply
    3,495.26x = 5,236.40 × 2,678.78
  4. Step 4: Simplify right side
    3,495.26x = 14,027,163.59
  5. Step 5: Solve for x
    x = 14,027,163.59/3,495.26
  6. Step 6: Final answer
    x = 4,013.20

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1.5x scale

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.