Home / 1,676.30-2,313.18-985.84

Finding the Fourth Proportional to 1,676.30, 2,313.18 and 985.84

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Solution

The fourth proportional to 1,676.30, 2,313.18 and 985.84 is: 1,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.30 : 2,313.18 = 985.84 : x
  2. Step 2: Convert to fraction form
    1,676.30/2,313.18 = 985.84/x
  3. Step 3: Cross multiply
    1,676.30x = 2,313.18 × 985.84
  4. Step 4: Simplify right side
    1,676.30x = 2,280,425.37
  5. Step 5: Solve for x
    x = 2,280,425.37/1,676.30
  6. Step 6: Final answer
    x = 1,360.39

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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.