Home / 6,976.80-9,632.64-4,328.16

Finding the Fourth Proportional to 6,976.80, 9,632.64 and 4,328.16

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Solution

The fourth proportional to 6,976.80, 9,632.64 and 4,328.16 is: 5,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.80 : 9,632.64 = 4,328.16 : x
  2. Step 2: Convert to fraction form
    6,976.80/9,632.64 = 4,328.16/x
  3. Step 3: Cross multiply
    6,976.80x = 9,632.64 × 4,328.16
  4. Step 4: Simplify right side
    6,976.80x = 41,691,607.14
  5. Step 5: Solve for x
    x = 41,691,607.14/6,976.80
  6. Step 6: Final answer
    x = 5,975.75

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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.