Home / 7,638.36-11,459.25-2,958.42

Finding the Fourth Proportional to 7,638.36, 11,459.25 and 2,958.42

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Solution

The fourth proportional to 7,638.36, 11,459.25 and 2,958.42 is: 4,438.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.36 : 11,459.25 = 2,958.42 : x
  2. Step 2: Convert to fraction form
    7,638.36/11,459.25 = 2,958.42/x
  3. Step 3: Cross multiply
    7,638.36x = 11,459.25 × 2,958.42
  4. Step 4: Simplify right side
    7,638.36x = 33,901,274.39
  5. Step 5: Solve for x
    x = 33,901,274.39/7,638.36
  6. Step 6: Final answer
    x = 4,438.29

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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.