Home / 3,284.72-4,926.90-1,985.84

Finding the Fourth Proportional to 3,284.72, 4,926.90 and 1,985.84

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Solution

The fourth proportional to 3,284.72, 4,926.90 and 1,985.84 is: 2,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,284.72 : 4,926.90 = 1,985.84 : x
  2. Step 2: Convert to fraction form
    3,284.72/4,926.90 = 1,985.84/x
  3. Step 3: Cross multiply
    3,284.72x = 4,926.90 × 1,985.84
  4. Step 4: Simplify right side
    3,284.72x = 9,784,035.10
  5. Step 5: Solve for x
    x = 9,784,035.10/3,284.72
  6. Step 6: Final answer
    x = 2,978.65

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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.