Home / 2,488.92-3,434.65-1,369.79

Finding the Fourth Proportional to 2,488.92, 3,434.65 and 1,369.79

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Solution

The fourth proportional to 2,488.92, 3,434.65 and 1,369.79 is: 1,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.92 : 3,434.65 = 1,369.79 : x
  2. Step 2: Convert to fraction form
    2,488.92/3,434.65 = 1,369.79/x
  3. Step 3: Cross multiply
    2,488.92x = 3,434.65 × 1,369.79
  4. Step 4: Simplify right side
    2,488.92x = 4,704,749.22
  5. Step 5: Solve for x
    x = 4,704,749.22/2,488.92
  6. Step 6: Final answer
    x = 1,890.28

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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.