Home / 3,070.85-4,602.83-1,221.47

Finding the Fourth Proportional to 3,070.85, 4,602.83 and 1,221.47

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Solution

The fourth proportional to 3,070.85, 4,602.83 and 1,221.47 is: 1,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.85 : 4,602.83 = 1,221.47 : x
  2. Step 2: Convert to fraction form
    3,070.85/4,602.83 = 1,221.47/x
  3. Step 3: Cross multiply
    3,070.85x = 4,602.83 × 1,221.47
  4. Step 4: Simplify right side
    3,070.85x = 5,622,189.64
  5. Step 5: Solve for x
    x = 5,622,189.64/3,070.85
  6. Step 6: Final answer
    x = 1,830.83

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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.