Home / 2,930.49-4,043.39-2,143.17

Finding the Fourth Proportional to 2,930.49, 4,043.39 and 2,143.17

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Solution

The fourth proportional to 2,930.49, 4,043.39 and 2,143.17 is: 2,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.49 : 4,043.39 = 2,143.17 : x
  2. Step 2: Convert to fraction form
    2,930.49/4,043.39 = 2,143.17/x
  3. Step 3: Cross multiply
    2,930.49x = 4,043.39 × 2,143.17
  4. Step 4: Simplify right side
    2,930.49x = 8,665,661.43
  5. Step 5: Solve for x
    x = 8,665,661.43/2,930.49
  6. Step 6: Final answer
    x = 2,957.07

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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.