Home / 5,095.75-7,031.97-2,857.77

Finding the Fourth Proportional to 5,095.75, 7,031.97 and 2,857.77

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Solution

The fourth proportional to 5,095.75, 7,031.97 and 2,857.77 is: 3,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,095.75 : 7,031.97 = 2,857.77 : x
  2. Step 2: Convert to fraction form
    5,095.75/7,031.97 = 2,857.77/x
  3. Step 3: Cross multiply
    5,095.75x = 7,031.97 × 2,857.77
  4. Step 4: Simplify right side
    5,095.75x = 20,095,731.82
  5. Step 5: Solve for x
    x = 20,095,731.82/5,095.75
  6. Step 6: Final answer
    x = 3,943.62

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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.