Home / 5,722.75-7,897.79-3,205.07

Finding the Fourth Proportional to 5,722.75, 7,897.79 and 3,205.07

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Solution

The fourth proportional to 5,722.75, 7,897.79 and 3,205.07 is: 4,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.75 : 7,897.79 = 3,205.07 : x
  2. Step 2: Convert to fraction form
    5,722.75/7,897.79 = 3,205.07/x
  3. Step 3: Cross multiply
    5,722.75x = 7,897.79 × 3,205.07
  4. Step 4: Simplify right side
    5,722.75x = 25,312,914.28
  5. Step 5: Solve for x
    x = 25,312,914.28/5,722.75
  6. Step 6: Final answer
    x = 4,423.21

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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.