Home / 3,313.22-4,571.98-1,915.70

Finding the Fourth Proportional to 3,313.22, 4,571.98 and 1,915.70

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Solution

The fourth proportional to 3,313.22, 4,571.98 and 1,915.70 is: 2,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.22 : 4,571.98 = 1,915.70 : x
  2. Step 2: Convert to fraction form
    3,313.22/4,571.98 = 1,915.70/x
  3. Step 3: Cross multiply
    3,313.22x = 4,571.98 × 1,915.70
  4. Step 4: Simplify right side
    3,313.22x = 8,758,514.44
  5. Step 5: Solve for x
    x = 8,758,514.44/3,313.22
  6. Step 6: Final answer
    x = 2,643.51

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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.