Home / 2,163.96-2,985.60-1,323.79

Finding the Fourth Proportional to 2,163.96, 2,985.60 and 1,323.79

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Solution

The fourth proportional to 2,163.96, 2,985.60 and 1,323.79 is: 1,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.96 : 2,985.60 = 1,323.79 : x
  2. Step 2: Convert to fraction form
    2,163.96/2,985.60 = 1,323.79/x
  3. Step 3: Cross multiply
    2,163.96x = 2,985.60 × 1,323.79
  4. Step 4: Simplify right side
    2,163.96x = 3,952,301.20
  5. Step 5: Solve for x
    x = 3,952,301.20/2,163.96
  6. Step 6: Final answer
    x = 1,826.42

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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.