Home / 7,769.28-10,723.68-4,785.60

Finding the Fourth Proportional to 7,769.28, 10,723.68 and 4,785.60

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Solution

The fourth proportional to 7,769.28, 10,723.68 and 4,785.60 is: 6,605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.28 : 10,723.68 = 4,785.60 : x
  2. Step 2: Convert to fraction form
    7,769.28/10,723.68 = 4,785.60/x
  3. Step 3: Cross multiply
    7,769.28x = 10,723.68 × 4,785.60
  4. Step 4: Simplify right side
    7,769.28x = 51,319,243.01
  5. Step 5: Solve for x
    x = 51,319,243.01/7,769.28
  6. Step 6: Final answer
    x = 6,605.41

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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.