Home / 5,102.75-7,041.80-2,894.75

Finding the Fourth Proportional to 5,102.75, 7,041.80 and 2,894.75

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Solution

The fourth proportional to 5,102.75, 7,041.80 and 2,894.75 is: 3,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.75 : 7,041.80 = 2,894.75 : x
  2. Step 2: Convert to fraction form
    5,102.75/7,041.80 = 2,894.75/x
  3. Step 3: Cross multiply
    5,102.75x = 7,041.80 × 2,894.75
  4. Step 4: Simplify right side
    5,102.75x = 20,384,250.55
  5. Step 5: Solve for x
    x = 20,384,250.55/5,102.75
  6. Step 6: Final answer
    x = 3,994.76

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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.