Home / 2,320.15-3,479.85-676.31

Finding the Fourth Proportional to 2,320.15, 3,479.85 and 676.31

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Solution

The fourth proportional to 2,320.15, 3,479.85 and 676.31 is: 1,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.15 : 3,479.85 = 676.31 : x
  2. Step 2: Convert to fraction form
    2,320.15/3,479.85 = 676.31/x
  3. Step 3: Cross multiply
    2,320.15x = 3,479.85 × 676.31
  4. Step 4: Simplify right side
    2,320.15x = 2,353,453.00
  5. Step 5: Solve for x
    x = 2,353,453.00/2,320.15
  6. Step 6: Final answer
    x = 1,014.36

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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.