Home / 7,628.44-10,528.26-4,485.64

Finding the Fourth Proportional to 7,628.44, 10,528.26 and 4,485.64

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Solution

The fourth proportional to 7,628.44, 10,528.26 and 4,485.64 is: 6,190.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.44 : 10,528.26 = 4,485.64 : x
  2. Step 2: Convert to fraction form
    7,628.44/10,528.26 = 4,485.64/x
  3. Step 3: Cross multiply
    7,628.44x = 10,528.26 × 4,485.64
  4. Step 4: Simplify right side
    7,628.44x = 47,225,984.19
  5. Step 5: Solve for x
    x = 47,225,984.19/7,628.44
  6. Step 6: Final answer
    x = 6,190.78

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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.