Home / 5,301.88-7,321.23-3,315.82

Finding the Fourth Proportional to 5,301.88, 7,321.23 and 3,315.82

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Solution

The fourth proportional to 5,301.88, 7,321.23 and 3,315.82 is: 4,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,301.88 : 7,321.23 = 3,315.82 : x
  2. Step 2: Convert to fraction form
    5,301.88/7,321.23 = 3,315.82/x
  3. Step 3: Cross multiply
    5,301.88x = 7,321.23 × 3,315.82
  4. Step 4: Simplify right side
    5,301.88x = 24,275,880.86
  5. Step 5: Solve for x
    x = 24,275,880.86/5,301.88
  6. Step 6: Final answer
    x = 4,578.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.