Home / 3,181.26-4,390.02-1,784.28

Finding the Fourth Proportional to 3,181.26, 4,390.02 and 1,784.28

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Solution

The fourth proportional to 3,181.26, 4,390.02 and 1,784.28 is: 2,462.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.26 : 4,390.02 = 1,784.28 : x
  2. Step 2: Convert to fraction form
    3,181.26/4,390.02 = 1,784.28/x
  3. Step 3: Cross multiply
    3,181.26x = 4,390.02 × 1,784.28
  4. Step 4: Simplify right side
    3,181.26x = 7,833,024.89
  5. Step 5: Solve for x
    x = 7,833,024.89/3,181.26
  6. Step 6: Final answer
    x = 2,462.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.