Home / 2,871.37-4,306.65-923.32

Finding the Fourth Proportional to 2,871.37, 4,306.65 and 923.32

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Solution

The fourth proportional to 2,871.37, 4,306.65 and 923.32 is: 1,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.37 : 4,306.65 = 923.32 : x
  2. Step 2: Convert to fraction form
    2,871.37/4,306.65 = 923.32/x
  3. Step 3: Cross multiply
    2,871.37x = 4,306.65 × 923.32
  4. Step 4: Simplify right side
    2,871.37x = 3,976,416.08
  5. Step 5: Solve for x
    x = 3,976,416.08/2,871.37
  6. Step 6: Final answer
    x = 1,384.85

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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.