Home / 7,077.47-10,617.73-2,147.47

Finding the Fourth Proportional to 7,077.47, 10,617.73 and 2,147.47

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Solution

The fourth proportional to 7,077.47, 10,617.73 and 2,147.47 is: 3,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.47 : 10,617.73 = 2,147.47 : x
  2. Step 2: Convert to fraction form
    7,077.47/10,617.73 = 2,147.47/x
  3. Step 3: Cross multiply
    7,077.47x = 10,617.73 × 2,147.47
  4. Step 4: Simplify right side
    7,077.47x = 22,801,224.73
  5. Step 5: Solve for x
    x = 22,801,224.73/7,077.47
  6. Step 6: Final answer
    x = 3,221.67

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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.