Home / 7,640.79-10,544.31-4,453.85

Finding the Fourth Proportional to 7,640.79, 10,544.31 and 4,453.85

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Solution

The fourth proportional to 7,640.79, 10,544.31 and 4,453.85 is: 6,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.79 : 10,544.31 = 4,453.85 : x
  2. Step 2: Convert to fraction form
    7,640.79/10,544.31 = 4,453.85/x
  3. Step 3: Cross multiply
    7,640.79x = 10,544.31 × 4,453.85
  4. Step 4: Simplify right side
    7,640.79x = 46,962,775.09
  5. Step 5: Solve for x
    x = 46,962,775.09/7,640.79
  6. Step 6: Final answer
    x = 6,146.32

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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.