Home / 2,488.39-3,434-1,369.40

Finding the Fourth Proportional to 2,488.39, 3,434 and 1,369.40

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Solution

The fourth proportional to 2,488.39, 3,434 and 1,369.40 is: 1,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.39 : 3,434 = 1,369.40 : x
  2. Step 2: Convert to fraction form
    2,488.39/3,434 = 1,369.40/x
  3. Step 3: Cross multiply
    2,488.39x = 3,434 × 1,369.40
  4. Step 4: Simplify right side
    2,488.39x = 4,702,519.60
  5. Step 5: Solve for x
    x = 4,702,519.60/2,488.39
  6. Step 6: Final answer
    x = 1,889.78

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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.