Home / 2,880.72-4,318.50-1,399.14

Finding the Fourth Proportional to 2,880.72, 4,318.50 and 1,399.14

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Solution

The fourth proportional to 2,880.72, 4,318.50 and 1,399.14 is: 2,097.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.72 : 4,318.50 = 1,399.14 : x
  2. Step 2: Convert to fraction form
    2,880.72/4,318.50 = 1,399.14/x
  3. Step 3: Cross multiply
    2,880.72x = 4,318.50 × 1,399.14
  4. Step 4: Simplify right side
    2,880.72x = 6,042,186.09
  5. Step 5: Solve for x
    x = 6,042,186.09/2,880.72
  6. Step 6: Final answer
    x = 2,097.46

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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.