Home / 6,453.78-9,680.67-2,071.59

Finding the Fourth Proportional to 6,453.78, 9,680.67 and 2,071.59

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Solution

The fourth proportional to 6,453.78, 9,680.67 and 2,071.59 is: 3,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.78 : 9,680.67 = 2,071.59 : x
  2. Step 2: Convert to fraction form
    6,453.78/9,680.67 = 2,071.59/x
  3. Step 3: Cross multiply
    6,453.78x = 9,680.67 × 2,071.59
  4. Step 4: Simplify right side
    6,453.78x = 20,054,379.17
  5. Step 5: Solve for x
    x = 20,054,379.17/6,453.78
  6. Step 6: Final answer
    x = 3,107.39

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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.