Home / 5,315.85-7,968.63-2,976.99

Finding the Fourth Proportional to 5,315.85, 7,968.63 and 2,976.99

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Solution

The fourth proportional to 5,315.85, 7,968.63 and 2,976.99 is: 4,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.85 : 7,968.63 = 2,976.99 : x
  2. Step 2: Convert to fraction form
    5,315.85/7,968.63 = 2,976.99/x
  3. Step 3: Cross multiply
    5,315.85x = 7,968.63 × 2,976.99
  4. Step 4: Simplify right side
    5,315.85x = 23,722,531.82
  5. Step 5: Solve for x
    x = 23,722,531.82/5,315.85
  6. Step 6: Final answer
    x = 4,462.60

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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.