Home / 7,728.77-10,665.66-4,325.79

Finding the Fourth Proportional to 7,728.77, 10,665.66 and 4,325.79

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Solution

The fourth proportional to 7,728.77, 10,665.66 and 4,325.79 is: 5,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.77 : 10,665.66 = 4,325.79 : x
  2. Step 2: Convert to fraction form
    7,728.77/10,665.66 = 4,325.79/x
  3. Step 3: Cross multiply
    7,728.77x = 10,665.66 × 4,325.79
  4. Step 4: Simplify right side
    7,728.77x = 46,137,405.37
  5. Step 5: Solve for x
    x = 46,137,405.37/7,728.77
  6. Step 6: Final answer
    x = 5,969.57

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Half scale
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Double scale
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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.