Home / 5,222.82-7,207.86-2,985.03

Finding the Fourth Proportional to 5,222.82, 7,207.86 and 2,985.03

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Solution

The fourth proportional to 5,222.82, 7,207.86 and 2,985.03 is: 4,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.82 : 7,207.86 = 2,985.03 : x
  2. Step 2: Convert to fraction form
    5,222.82/7,207.86 = 2,985.03/x
  3. Step 3: Cross multiply
    5,222.82x = 7,207.86 × 2,985.03
  4. Step 4: Simplify right side
    5,222.82x = 21,515,678.34
  5. Step 5: Solve for x
    x = 21,515,678.34/5,222.82
  6. Step 6: Final answer
    x = 4,119.55

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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.