Home / 2,289.48-3,434.20-828.62

Finding the Fourth Proportional to 2,289.48, 3,434.20 and 828.62

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Solution

The fourth proportional to 2,289.48, 3,434.20 and 828.62 is: 1,242.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.48 : 3,434.20 = 828.62 : x
  2. Step 2: Convert to fraction form
    2,289.48/3,434.20 = 828.62/x
  3. Step 3: Cross multiply
    2,289.48x = 3,434.20 × 828.62
  4. Step 4: Simplify right side
    2,289.48x = 2,845,646.80
  5. Step 5: Solve for x
    x = 2,845,646.80/2,289.48
  6. Step 6: Final answer
    x = 1,242.92

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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.