Home / 2,313.28-3,192.96-1,486.72

Finding the Fourth Proportional to 2,313.28, 3,192.96 and 1,486.72

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Solution

The fourth proportional to 2,313.28, 3,192.96 and 1,486.72 is: 2,052.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.28 : 3,192.96 = 1,486.72 : x
  2. Step 2: Convert to fraction form
    2,313.28/3,192.96 = 1,486.72/x
  3. Step 3: Cross multiply
    2,313.28x = 3,192.96 × 1,486.72
  4. Step 4: Simplify right side
    2,313.28x = 4,747,037.49
  5. Step 5: Solve for x
    x = 4,747,037.49/2,313.28
  6. Step 6: Final answer
    x = 2,052.08

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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.