Home / 5,729.68-7,907.28-3,212.60

Finding the Fourth Proportional to 5,729.68, 7,907.28 and 3,212.60

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Solution

The fourth proportional to 5,729.68, 7,907.28 and 3,212.60 is: 4,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.68 : 7,907.28 = 3,212.60 : x
  2. Step 2: Convert to fraction form
    5,729.68/7,907.28 = 3,212.60/x
  3. Step 3: Cross multiply
    5,729.68x = 7,907.28 × 3,212.60
  4. Step 4: Simplify right side
    5,729.68x = 25,402,876.14
  5. Step 5: Solve for x
    x = 25,402,876.14/5,729.68
  6. Step 6: Final answer
    x = 4,433.56

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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.