Home / 3,515.10-5,269.38-1,325.28

Finding the Fourth Proportional to 3,515.10, 5,269.38 and 1,325.28

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Solution

The fourth proportional to 3,515.10, 5,269.38 and 1,325.28 is: 1,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.10 : 5,269.38 = 1,325.28 : x
  2. Step 2: Convert to fraction form
    3,515.10/5,269.38 = 1,325.28/x
  3. Step 3: Cross multiply
    3,515.10x = 5,269.38 × 1,325.28
  4. Step 4: Simplify right side
    3,515.10x = 6,983,403.93
  5. Step 5: Solve for x
    x = 6,983,403.93/3,515.10
  6. Step 6: Final answer
    x = 1,986.69

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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.