Home / 6,289.28-9,435.08-2,072.78

Finding the Fourth Proportional to 6,289.28, 9,435.08 and 2,072.78

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Solution

The fourth proportional to 6,289.28, 9,435.08 and 2,072.78 is: 3,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.28 : 9,435.08 = 2,072.78 : x
  2. Step 2: Convert to fraction form
    6,289.28/9,435.08 = 2,072.78/x
  3. Step 3: Cross multiply
    6,289.28x = 9,435.08 × 2,072.78
  4. Step 4: Simplify right side
    6,289.28x = 19,556,845.12
  5. Step 5: Solve for x
    x = 19,556,845.12/6,289.28
  6. Step 6: Final answer
    x = 3,109.55

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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.