Home / 2,163.31-2,985.59-1,324.58

Finding the Fourth Proportional to 2,163.31, 2,985.59 and 1,324.58

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Solution

The fourth proportional to 2,163.31, 2,985.59 and 1,324.58 is: 1,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.31 : 2,985.59 = 1,324.58 : x
  2. Step 2: Convert to fraction form
    2,163.31/2,985.59 = 1,324.58/x
  3. Step 3: Cross multiply
    2,163.31x = 2,985.59 × 1,324.58
  4. Step 4: Simplify right side
    2,163.31x = 3,954,641.19
  5. Step 5: Solve for x
    x = 3,954,641.19/2,163.31
  6. Step 6: Final answer
    x = 1,828.05

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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.