Home / 2,989.73-4,123.54-2,653.99

Finding the Fourth Proportional to 2,989.73, 4,123.54 and 2,653.99

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Solution

The fourth proportional to 2,989.73, 4,123.54 and 2,653.99 is: 3,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.73 : 4,123.54 = 2,653.99 : x
  2. Step 2: Convert to fraction form
    2,989.73/4,123.54 = 2,653.99/x
  3. Step 3: Cross multiply
    2,989.73x = 4,123.54 × 2,653.99
  4. Step 4: Simplify right side
    2,989.73x = 10,943,833.92
  5. Step 5: Solve for x
    x = 10,943,833.92/2,989.73
  6. Step 6: Final answer
    x = 3,660.48

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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.