Home / 7,629.70-10,530-4,272.70

Finding the Fourth Proportional to 7,629.70, 10,530 and 4,272.70

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Solution

The fourth proportional to 7,629.70, 10,530 and 4,272.70 is: 5,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.70 : 10,530 = 4,272.70 : x
  2. Step 2: Convert to fraction form
    7,629.70/10,530 = 4,272.70/x
  3. Step 3: Cross multiply
    7,629.70x = 10,530 × 4,272.70
  4. Step 4: Simplify right side
    7,629.70x = 44,991,531
  5. Step 5: Solve for x
    x = 44,991,531/7,629.70
  6. Step 6: Final answer
    x = 5,896.89

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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.