Home / 5,315.46-7,975.62-2,975.28

Finding the Fourth Proportional to 5,315.46, 7,975.62 and 2,975.28

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Solution

The fourth proportional to 5,315.46, 7,975.62 and 2,975.28 is: 4,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.46 : 7,975.62 = 2,975.28 : x
  2. Step 2: Convert to fraction form
    5,315.46/7,975.62 = 2,975.28/x
  3. Step 3: Cross multiply
    5,315.46x = 7,975.62 × 2,975.28
  4. Step 4: Simplify right side
    5,315.46x = 23,729,702.67
  5. Step 5: Solve for x
    x = 23,729,702.67/5,315.46
  6. Step 6: Final answer
    x = 4,464.28

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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.