Home / 5,239.05-7,229.74-2,881.19

Finding the Fourth Proportional to 5,239.05, 7,229.74 and 2,881.19

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Solution

The fourth proportional to 5,239.05, 7,229.74 and 2,881.19 is: 3,975.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.05 : 7,229.74 = 2,881.19 : x
  2. Step 2: Convert to fraction form
    5,239.05/7,229.74 = 2,881.19/x
  3. Step 3: Cross multiply
    5,239.05x = 7,229.74 × 2,881.19
  4. Step 4: Simplify right side
    5,239.05x = 20,830,211.24
  5. Step 5: Solve for x
    x = 20,830,211.24/5,239.05
  6. Step 6: Final answer
    x = 3,975.96

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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.