Home / 7,078.44-10,617.72-2,148.30

Finding the Fourth Proportional to 7,078.44, 10,617.72 and 2,148.30

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Solution

The fourth proportional to 7,078.44, 10,617.72 and 2,148.30 is: 3,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.44 : 10,617.72 = 2,148.30 : x
  2. Step 2: Convert to fraction form
    7,078.44/10,617.72 = 2,148.30/x
  3. Step 3: Cross multiply
    7,078.44x = 10,617.72 × 2,148.30
  4. Step 4: Simplify right side
    7,078.44x = 22,810,047.88
  5. Step 5: Solve for x
    x = 22,810,047.88/7,078.44
  6. Step 6: Final answer
    x = 3,222.47

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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.