Home / 2,630.81-3,940.60-1,703.62

Finding the Fourth Proportional to 2,630.81, 3,940.60 and 1,703.62

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Solution

The fourth proportional to 2,630.81, 3,940.60 and 1,703.62 is: 2,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.81 : 3,940.60 = 1,703.62 : x
  2. Step 2: Convert to fraction form
    2,630.81/3,940.60 = 1,703.62/x
  3. Step 3: Cross multiply
    2,630.81x = 3,940.60 × 1,703.62
  4. Step 4: Simplify right side
    2,630.81x = 6,713,266.67
  5. Step 5: Solve for x
    x = 6,713,266.67/2,630.81
  6. Step 6: Final answer
    x = 2,551.78

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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.