Home / 5,131.76-7,697.64-2,938.97

Finding the Fourth Proportional to 5,131.76, 7,697.64 and 2,938.97

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Solution

The fourth proportional to 5,131.76, 7,697.64 and 2,938.97 is: 4,408.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.76 : 7,697.64 = 2,938.97 : x
  2. Step 2: Convert to fraction form
    5,131.76/7,697.64 = 2,938.97/x
  3. Step 3: Cross multiply
    5,131.76x = 7,697.64 × 2,938.97
  4. Step 4: Simplify right side
    5,131.76x = 22,623,133.03
  5. Step 5: Solve for x
    x = 22,623,133.03/5,131.76
  6. Step 6: Final answer
    x = 4,408.46

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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.