Home / 5,687.10-8,515.29-2,945.34

Finding the Fourth Proportional to 5,687.10, 8,515.29 and 2,945.34

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Solution

The fourth proportional to 5,687.10, 8,515.29 and 2,945.34 is: 4,410.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.10 : 8,515.29 = 2,945.34 : x
  2. Step 2: Convert to fraction form
    5,687.10/8,515.29 = 2,945.34/x
  3. Step 3: Cross multiply
    5,687.10x = 8,515.29 × 2,945.34
  4. Step 4: Simplify right side
    5,687.10x = 25,080,424.25
  5. Step 5: Solve for x
    x = 25,080,424.25/5,687.10
  6. Step 6: Final answer
    x = 4,410.06

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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.