Home / 3,020.59-4,530.36-828.93

Finding the Fourth Proportional to 3,020.59, 4,530.36 and 828.93

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Solution

The fourth proportional to 3,020.59, 4,530.36 and 828.93 is: 1,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.59 : 4,530.36 = 828.93 : x
  2. Step 2: Convert to fraction form
    3,020.59/4,530.36 = 828.93/x
  3. Step 3: Cross multiply
    3,020.59x = 4,530.36 × 828.93
  4. Step 4: Simplify right side
    3,020.59x = 3,755,351.31
  5. Step 5: Solve for x
    x = 3,755,351.31/3,020.59
  6. Step 6: Final answer
    x = 1,243.25

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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.