Home / 3,455.35-5,183.03-1,812.40

Finding the Fourth Proportional to 3,455.35, 5,183.03 and 1,812.40

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Solution

The fourth proportional to 3,455.35, 5,183.03 and 1,812.40 is: 2,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.35 : 5,183.03 = 1,812.40 : x
  2. Step 2: Convert to fraction form
    3,455.35/5,183.03 = 1,812.40/x
  3. Step 3: Cross multiply
    3,455.35x = 5,183.03 × 1,812.40
  4. Step 4: Simplify right side
    3,455.35x = 9,393,714.51
  5. Step 5: Solve for x
    x = 9,393,714.51/3,455.35
  6. Step 6: Final answer
    x = 2,718.60

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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.