Home / 2,949.20-4,043.51-2,896.55

Finding the Fourth Proportional to 2,949.20, 4,043.51 and 2,896.55

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Solution

The fourth proportional to 2,949.20, 4,043.51 and 2,896.55 is: 3,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.20 : 4,043.51 = 2,896.55 : x
  2. Step 2: Convert to fraction form
    2,949.20/4,043.51 = 2,896.55/x
  3. Step 3: Cross multiply
    2,949.20x = 4,043.51 × 2,896.55
  4. Step 4: Simplify right side
    2,949.20x = 11,712,215.91
  5. Step 5: Solve for x
    x = 11,712,215.91/2,949.20
  6. Step 6: Final answer
    x = 3,971.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.