Home / 3,543.21-5,317.31-2,858.15

Finding the Fourth Proportional to 3,543.21, 5,317.31 and 2,858.15

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Solution

The fourth proportional to 3,543.21, 5,317.31 and 2,858.15 is: 4,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.21 : 5,317.31 = 2,858.15 : x
  2. Step 2: Convert to fraction form
    3,543.21/5,317.31 = 2,858.15/x
  3. Step 3: Cross multiply
    3,543.21x = 5,317.31 × 2,858.15
  4. Step 4: Simplify right side
    3,543.21x = 15,197,690.02
  5. Step 5: Solve for x
    x = 15,197,690.02/3,543.21
  6. Step 6: Final answer
    x = 4,289.24

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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.