Home / 5,208.89-7,189.77-2,971.98

Finding the Fourth Proportional to 5,208.89, 7,189.77 and 2,971.98

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Solution

The fourth proportional to 5,208.89, 7,189.77 and 2,971.98 is: 4,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.89 : 7,189.77 = 2,971.98 : x
  2. Step 2: Convert to fraction form
    5,208.89/7,189.77 = 2,971.98/x
  3. Step 3: Cross multiply
    5,208.89x = 7,189.77 × 2,971.98
  4. Step 4: Simplify right side
    5,208.89x = 21,367,852.64
  5. Step 5: Solve for x
    x = 21,367,852.64/5,208.89
  6. Step 6: Final answer
    x = 4,102.19

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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.