Home / 2,607.35-3,911.22-828.18

Finding the Fourth Proportional to 2,607.35, 3,911.22 and 828.18

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Solution

The fourth proportional to 2,607.35, 3,911.22 and 828.18 is: 1,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.35 : 3,911.22 = 828.18 : x
  2. Step 2: Convert to fraction form
    2,607.35/3,911.22 = 828.18/x
  3. Step 3: Cross multiply
    2,607.35x = 3,911.22 × 828.18
  4. Step 4: Simplify right side
    2,607.35x = 3,239,194.18
  5. Step 5: Solve for x
    x = 3,239,194.18/2,607.35
  6. Step 6: Final answer
    x = 1,242.33

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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.