Home / 3,218.96-4,829.40-1,850

Finding the Fourth Proportional to 3,218.96, 4,829.40 and 1,850

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Solution

The fourth proportional to 3,218.96, 4,829.40 and 1,850 is: 2,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.96 : 4,829.40 = 1,850 : x
  2. Step 2: Convert to fraction form
    3,218.96/4,829.40 = 1,850/x
  3. Step 3: Cross multiply
    3,218.96x = 4,829.40 × 1,850
  4. Step 4: Simplify right side
    3,218.96x = 8,934,390
  5. Step 5: Solve for x
    x = 8,934,390/3,218.96
  6. Step 6: Final answer
    x = 2,775.55

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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.