Home / 2,905.38-4,011.45-2,232.06

Finding the Fourth Proportional to 2,905.38, 4,011.45 and 2,232.06

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Solution

The fourth proportional to 2,905.38, 4,011.45 and 2,232.06 is: 3,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.38 : 4,011.45 = 2,232.06 : x
  2. Step 2: Convert to fraction form
    2,905.38/4,011.45 = 2,232.06/x
  3. Step 3: Cross multiply
    2,905.38x = 4,011.45 × 2,232.06
  4. Step 4: Simplify right side
    2,905.38x = 8,953,797.09
  5. Step 5: Solve for x
    x = 8,953,797.09/2,905.38
  6. Step 6: Final answer
    x = 3,081.80

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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.