Home / 2,160.68-3,236.14-1,429.24

Finding the Fourth Proportional to 2,160.68, 3,236.14 and 1,429.24

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Solution

The fourth proportional to 2,160.68, 3,236.14 and 1,429.24 is: 2,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.68 : 3,236.14 = 1,429.24 : x
  2. Step 2: Convert to fraction form
    2,160.68/3,236.14 = 1,429.24/x
  3. Step 3: Cross multiply
    2,160.68x = 3,236.14 × 1,429.24
  4. Step 4: Simplify right side
    2,160.68x = 4,625,220.73
  5. Step 5: Solve for x
    x = 4,625,220.73/2,160.68
  6. Step 6: Final answer
    x = 2,140.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.