Home / 2,154.92-3,232.38-1,289.06

Finding the Fourth Proportional to 2,154.92, 3,232.38 and 1,289.06

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Solution

The fourth proportional to 2,154.92, 3,232.38 and 1,289.06 is: 1,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.92 : 3,232.38 = 1,289.06 : x
  2. Step 2: Convert to fraction form
    2,154.92/3,232.38 = 1,289.06/x
  3. Step 3: Cross multiply
    2,154.92x = 3,232.38 × 1,289.06
  4. Step 4: Simplify right side
    2,154.92x = 4,166,731.76
  5. Step 5: Solve for x
    x = 4,166,731.76/2,154.92
  6. Step 6: Final answer
    x = 1,933.59

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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.