Home / 5,286.24-7,918.74-2,515.56

Finding the Fourth Proportional to 5,286.24, 7,918.74 and 2,515.56

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Solution

The fourth proportional to 5,286.24, 7,918.74 and 2,515.56 is: 3,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.24 : 7,918.74 = 2,515.56 : x
  2. Step 2: Convert to fraction form
    5,286.24/7,918.74 = 2,515.56/x
  3. Step 3: Cross multiply
    5,286.24x = 7,918.74 × 2,515.56
  4. Step 4: Simplify right side
    5,286.24x = 19,920,065.59
  5. Step 5: Solve for x
    x = 19,920,065.59/5,286.24
  6. Step 6: Final answer
    x = 3,768.29

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1.5x scale

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.