Home / 3,181.02-4,771.93-1,620.48

Finding the Fourth Proportional to 3,181.02, 4,771.93 and 1,620.48

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Solution

The fourth proportional to 3,181.02, 4,771.93 and 1,620.48 is: 2,430.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.02 : 4,771.93 = 1,620.48 : x
  2. Step 2: Convert to fraction form
    3,181.02/4,771.93 = 1,620.48/x
  3. Step 3: Cross multiply
    3,181.02x = 4,771.93 × 1,620.48
  4. Step 4: Simplify right side
    3,181.02x = 7,732,817.13
  5. Step 5: Solve for x
    x = 7,732,817.13/3,181.02
  6. Step 6: Final answer
    x = 2,430.92

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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.