Home / 5,095.54-7,031.40-2,857.12

Finding the Fourth Proportional to 5,095.54, 7,031.40 and 2,857.12

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Solution

The fourth proportional to 5,095.54, 7,031.40 and 2,857.12 is: 3,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,095.54 : 7,031.40 = 2,857.12 : x
  2. Step 2: Convert to fraction form
    5,095.54/7,031.40 = 2,857.12/x
  3. Step 3: Cross multiply
    5,095.54x = 7,031.40 × 2,857.12
  4. Step 4: Simplify right side
    5,095.54x = 20,089,553.57
  5. Step 5: Solve for x
    x = 20,089,553.57/5,095.54
  6. Step 6: Final answer
    x = 3,942.58

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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.