Home / 2,960.25-4,072.95-2,887.35

Finding the Fourth Proportional to 2,960.25, 4,072.95 and 2,887.35

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Solution

The fourth proportional to 2,960.25, 4,072.95 and 2,887.35 is: 3,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.25 : 4,072.95 = 2,887.35 : x
  2. Step 2: Convert to fraction form
    2,960.25/4,072.95 = 2,887.35/x
  3. Step 3: Cross multiply
    2,960.25x = 4,072.95 × 2,887.35
  4. Step 4: Simplify right side
    2,960.25x = 11,760,032.18
  5. Step 5: Solve for x
    x = 11,760,032.18/2,960.25
  6. Step 6: Final answer
    x = 3,972.65

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1.5x scale

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.