Home / 7,128.06-10,693.23-2,197.70

Finding the Fourth Proportional to 7,128.06, 10,693.23 and 2,197.70

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Solution

The fourth proportional to 7,128.06, 10,693.23 and 2,197.70 is: 3,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.06 : 10,693.23 = 2,197.70 : x
  2. Step 2: Convert to fraction form
    7,128.06/10,693.23 = 2,197.70/x
  3. Step 3: Cross multiply
    7,128.06x = 10,693.23 × 2,197.70
  4. Step 4: Simplify right side
    7,128.06x = 23,500,458.10
  5. Step 5: Solve for x
    x = 23,500,458.10/7,128.06
  6. Step 6: Final answer
    x = 3,296.89

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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.