Home / 2,390.69-3,299.12-1,342.75

Finding the Fourth Proportional to 2,390.69, 3,299.12 and 1,342.75

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Solution

The fourth proportional to 2,390.69, 3,299.12 and 1,342.75 is: 1,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.69 : 3,299.12 = 1,342.75 : x
  2. Step 2: Convert to fraction form
    2,390.69/3,299.12 = 1,342.75/x
  3. Step 3: Cross multiply
    2,390.69x = 3,299.12 × 1,342.75
  4. Step 4: Simplify right side
    2,390.69x = 4,429,878.42
  5. Step 5: Solve for x
    x = 4,429,878.42/2,390.69
  6. Step 6: Final answer
    x = 1,852.97

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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.