Home / 7,128.75-10,693.53-2,969.13

Finding the Fourth Proportional to 7,128.75, 10,693.53 and 2,969.13

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Solution

The fourth proportional to 7,128.75, 10,693.53 and 2,969.13 is: 4,453.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.75 : 10,693.53 = 2,969.13 : x
  2. Step 2: Convert to fraction form
    7,128.75/10,693.53 = 2,969.13/x
  3. Step 3: Cross multiply
    7,128.75x = 10,693.53 × 2,969.13
  4. Step 4: Simplify right side
    7,128.75x = 31,750,480.73
  5. Step 5: Solve for x
    x = 31,750,480.73/7,128.75
  6. Step 6: Final answer
    x = 4,453.86

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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.