Home / 5,163.76-7,125.19-2,894.75

Finding the Fourth Proportional to 5,163.76, 7,125.19 and 2,894.75

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Solution

The fourth proportional to 5,163.76, 7,125.19 and 2,894.75 is: 3,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.76 : 7,125.19 = 2,894.75 : x
  2. Step 2: Convert to fraction form
    5,163.76/7,125.19 = 2,894.75/x
  3. Step 3: Cross multiply
    5,163.76x = 7,125.19 × 2,894.75
  4. Step 4: Simplify right side
    5,163.76x = 20,625,643.75
  5. Step 5: Solve for x
    x = 20,625,643.75/5,163.76
  6. Step 6: Final answer
    x = 3,994.31

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Double scale
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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.