Home / 7,824.56-10,797.78-4,239.50

Finding the Fourth Proportional to 7,824.56, 10,797.78 and 4,239.50

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Solution

The fourth proportional to 7,824.56, 10,797.78 and 4,239.50 is: 5,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.56 : 10,797.78 = 4,239.50 : x
  2. Step 2: Convert to fraction form
    7,824.56/10,797.78 = 4,239.50/x
  3. Step 3: Cross multiply
    7,824.56x = 10,797.78 × 4,239.50
  4. Step 4: Simplify right side
    7,824.56x = 45,777,134.32
  5. Step 5: Solve for x
    x = 45,777,134.32/7,824.56
  6. Step 6: Final answer
    x = 5,850.45

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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.