Home / 7,177.28-9,903.68-4,193.60

Finding the Fourth Proportional to 7,177.28, 9,903.68 and 4,193.60

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Solution

The fourth proportional to 7,177.28, 9,903.68 and 4,193.60 is: 5,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.28 : 9,903.68 = 4,193.60 : x
  2. Step 2: Convert to fraction form
    7,177.28/9,903.68 = 4,193.60/x
  3. Step 3: Cross multiply
    7,177.28x = 9,903.68 × 4,193.60
  4. Step 4: Simplify right side
    7,177.28x = 41,532,072.45
  5. Step 5: Solve for x
    x = 41,532,072.45/7,177.28
  6. Step 6: Final answer
    x = 5,786.60

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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.