Home / 2,880.96-4,322.07-933.12

Finding the Fourth Proportional to 2,880.96, 4,322.07 and 933.12

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Solution

The fourth proportional to 2,880.96, 4,322.07 and 933.12 is: 1,399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.96 : 4,322.07 = 933.12 : x
  2. Step 2: Convert to fraction form
    2,880.96/4,322.07 = 933.12/x
  3. Step 3: Cross multiply
    2,880.96x = 4,322.07 × 933.12
  4. Step 4: Simplify right side
    2,880.96x = 4,033,009.96
  5. Step 5: Solve for x
    x = 4,033,009.96/2,880.96
  6. Step 6: Final answer
    x = 1,399.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.