Home / 5,733.09-7,911.68-3,215.21

Finding the Fourth Proportional to 5,733.09, 7,911.68 and 3,215.21

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Solution

The fourth proportional to 5,733.09, 7,911.68 and 3,215.21 is: 4,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,733.09 : 7,911.68 = 3,215.21 : x
  2. Step 2: Convert to fraction form
    5,733.09/7,911.68 = 3,215.21/x
  3. Step 3: Cross multiply
    5,733.09x = 7,911.68 × 3,215.21
  4. Step 4: Simplify right side
    5,733.09x = 25,437,657.02
  5. Step 5: Solve for x
    x = 25,437,657.02/5,733.09
  6. Step 6: Final answer
    x = 4,436.99

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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.