Home / 3,011.72-4,517.58-1,985.48

Finding the Fourth Proportional to 3,011.72, 4,517.58 and 1,985.48

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Solution

The fourth proportional to 3,011.72, 4,517.58 and 1,985.48 is: 2,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.72 : 4,517.58 = 1,985.48 : x
  2. Step 2: Convert to fraction form
    3,011.72/4,517.58 = 1,985.48/x
  3. Step 3: Cross multiply
    3,011.72x = 4,517.58 × 1,985.48
  4. Step 4: Simplify right side
    3,011.72x = 8,969,564.74
  5. Step 5: Solve for x
    x = 8,969,564.74/3,011.72
  6. Step 6: Final answer
    x = 2,978.22

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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.