Home / 2,949.85-4,070.82-1,605.46

Finding the Fourth Proportional to 2,949.85, 4,070.82 and 1,605.46

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Solution

The fourth proportional to 2,949.85, 4,070.82 and 1,605.46 is: 2,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.85 : 4,070.82 = 1,605.46 : x
  2. Step 2: Convert to fraction form
    2,949.85/4,070.82 = 1,605.46/x
  3. Step 3: Cross multiply
    2,949.85x = 4,070.82 × 1,605.46
  4. Step 4: Simplify right side
    2,949.85x = 6,535,538.68
  5. Step 5: Solve for x
    x = 6,535,538.68/2,949.85
  6. Step 6: Final answer
    x = 2,215.55

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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.