Home / 2,405.96-3,318.54-1,520.23

Finding the Fourth Proportional to 2,405.96, 3,318.54 and 1,520.23

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Solution

The fourth proportional to 2,405.96, 3,318.54 and 1,520.23 is: 2,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.96 : 3,318.54 = 1,520.23 : x
  2. Step 2: Convert to fraction form
    2,405.96/3,318.54 = 1,520.23/x
  3. Step 3: Cross multiply
    2,405.96x = 3,318.54 × 1,520.23
  4. Step 4: Simplify right side
    2,405.96x = 5,044,944.06
  5. Step 5: Solve for x
    x = 5,044,944.06/2,405.96
  6. Step 6: Final answer
    x = 2,096.85

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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.