Home / 5,776.32-7,969.44-3,681.12

Finding the Fourth Proportional to 5,776.32, 7,969.44 and 3,681.12

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Solution

The fourth proportional to 5,776.32, 7,969.44 and 3,681.12 is: 5,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.32 : 7,969.44 = 3,681.12 : x
  2. Step 2: Convert to fraction form
    5,776.32/7,969.44 = 3,681.12/x
  3. Step 3: Cross multiply
    5,776.32x = 7,969.44 × 3,681.12
  4. Step 4: Simplify right side
    5,776.32x = 29,336,464.97
  5. Step 5: Solve for x
    x = 29,336,464.97/5,776.32
  6. Step 6: Final answer
    x = 5,078.75

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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.