Home / 2,961.16-4,085.04-1,913.56

Finding the Fourth Proportional to 2,961.16, 4,085.04 and 1,913.56

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Solution

The fourth proportional to 2,961.16, 4,085.04 and 1,913.56 is: 2,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.16 : 4,085.04 = 1,913.56 : x
  2. Step 2: Convert to fraction form
    2,961.16/4,085.04 = 1,913.56/x
  3. Step 3: Cross multiply
    2,961.16x = 4,085.04 × 1,913.56
  4. Step 4: Simplify right side
    2,961.16x = 7,816,969.14
  5. Step 5: Solve for x
    x = 7,816,969.14/2,961.16
  6. Step 6: Final answer
    x = 2,639.83

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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.