Home / 2,455.40-3,388.26-1,523.72

Finding the Fourth Proportional to 2,455.40, 3,388.26 and 1,523.72

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Solution

The fourth proportional to 2,455.40, 3,388.26 and 1,523.72 is: 2,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.40 : 3,388.26 = 1,523.72 : x
  2. Step 2: Convert to fraction form
    2,455.40/3,388.26 = 1,523.72/x
  3. Step 3: Cross multiply
    2,455.40x = 3,388.26 × 1,523.72
  4. Step 4: Simplify right side
    2,455.40x = 5,162,759.53
  5. Step 5: Solve for x
    x = 5,162,759.53/2,455.40
  6. Step 6: Final answer
    x = 2,102.61

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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.