Home / 3,167.10-4,750.65-1,317.60

Finding the Fourth Proportional to 3,167.10, 4,750.65 and 1,317.60

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Solution

The fourth proportional to 3,167.10, 4,750.65 and 1,317.60 is: 1,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.10 : 4,750.65 = 1,317.60 : x
  2. Step 2: Convert to fraction form
    3,167.10/4,750.65 = 1,317.60/x
  3. Step 3: Cross multiply
    3,167.10x = 4,750.65 × 1,317.60
  4. Step 4: Simplify right side
    3,167.10x = 6,259,456.44
  5. Step 5: Solve for x
    x = 6,259,456.44/3,167.10
  6. Step 6: Final answer
    x = 1,976.40

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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.