Home / 7,089.22-9,783.13-3,945.41

Finding the Fourth Proportional to 7,089.22, 9,783.13 and 3,945.41

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Solution

The fourth proportional to 7,089.22, 9,783.13 and 3,945.41 is: 5,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.22 : 9,783.13 = 3,945.41 : x
  2. Step 2: Convert to fraction form
    7,089.22/9,783.13 = 3,945.41/x
  3. Step 3: Cross multiply
    7,089.22x = 9,783.13 × 3,945.41
  4. Step 4: Simplify right side
    7,089.22x = 38,598,458.93
  5. Step 5: Solve for x
    x = 38,598,458.93/7,089.22
  6. Step 6: Final answer
    x = 5,444.67

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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.