Home / 5,207.96-7,185.48-3,111.68

Finding the Fourth Proportional to 5,207.96, 7,185.48 and 3,111.68

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Solution

The fourth proportional to 5,207.96, 7,185.48 and 3,111.68 is: 4,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.96 : 7,185.48 = 3,111.68 : x
  2. Step 2: Convert to fraction form
    5,207.96/7,185.48 = 3,111.68/x
  3. Step 3: Cross multiply
    5,207.96x = 7,185.48 × 3,111.68
  4. Step 4: Simplify right side
    5,207.96x = 22,358,914.41
  5. Step 5: Solve for x
    x = 22,358,914.41/5,207.96
  6. Step 6: Final answer
    x = 4,293.22

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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.