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Finding the Fourth Proportional to 2,905.00, 4,358.41 and 958.57

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Solution

The fourth proportional to 2,905.00, 4,358.41 and 958.57 is: 1,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.00 : 4,358.41 = 958.57 : x
  2. Step 2: Convert to fraction form
    2,905.00/4,358.41 = 958.57/x
  3. Step 3: Cross multiply
    2,905.00x = 4,358.41 × 958.57
  4. Step 4: Simplify right side
    2,905.00x = 4,177,827.78
  5. Step 5: Solve for x
    x = 4,177,827.78/2,905.00
  6. Step 6: Final answer
    x = 1,438.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.