Home / 2,488.20-3,433.08-1,439.64

Finding the Fourth Proportional to 2,488.20, 3,433.08 and 1,439.64

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Solution

The fourth proportional to 2,488.20, 3,433.08 and 1,439.64 is: 1,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.20 : 3,433.08 = 1,439.64 : x
  2. Step 2: Convert to fraction form
    2,488.20/3,433.08 = 1,439.64/x
  3. Step 3: Cross multiply
    2,488.20x = 3,433.08 × 1,439.64
  4. Step 4: Simplify right side
    2,488.20x = 4,942,399.29
  5. Step 5: Solve for x
    x = 4,942,399.29/2,488.20
  6. Step 6: Final answer
    x = 1,986.34

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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.