Home / 3,163.23-4,365.40-1,819.28

Finding the Fourth Proportional to 3,163.23, 4,365.40 and 1,819.28

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Solution

The fourth proportional to 3,163.23, 4,365.40 and 1,819.28 is: 2,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.23 : 4,365.40 = 1,819.28 : x
  2. Step 2: Convert to fraction form
    3,163.23/4,365.40 = 1,819.28/x
  3. Step 3: Cross multiply
    3,163.23x = 4,365.40 × 1,819.28
  4. Step 4: Simplify right side
    3,163.23x = 7,941,884.91
  5. Step 5: Solve for x
    x = 7,941,884.91/3,163.23
  6. Step 6: Final answer
    x = 2,510.69

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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.