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Finding the Fourth Proportional to 1,676.54, 2,313.41 and 958.71

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Solution

The fourth proportional to 1,676.54, 2,313.41 and 958.71 is: 1,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.54 : 2,313.41 = 958.71 : x
  2. Step 2: Convert to fraction form
    1,676.54/2,313.41 = 958.71/x
  3. Step 3: Cross multiply
    1,676.54x = 2,313.41 × 958.71
  4. Step 4: Simplify right side
    1,676.54x = 2,217,884.51
  5. Step 5: Solve for x
    x = 2,217,884.51/1,676.54
  6. Step 6: Final answer
    x = 1,322.90

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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.