Home / 2,290.11-3,435.30-646.62

Finding the Fourth Proportional to 2,290.11, 3,435.30 and 646.62

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Solution

The fourth proportional to 2,290.11, 3,435.30 and 646.62 is: 969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.11 : 3,435.30 = 646.62 : x
  2. Step 2: Convert to fraction form
    2,290.11/3,435.30 = 646.62/x
  3. Step 3: Cross multiply
    2,290.11x = 3,435.30 × 646.62
  4. Step 4: Simplify right side
    2,290.11x = 2,221,333.69
  5. Step 5: Solve for x
    x = 2,221,333.69/2,290.11
  6. Step 6: Final answer
    x = 969.97

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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.