Home / 3,124.12-4,311.28-1,797.82

Finding the Fourth Proportional to 3,124.12, 4,311.28 and 1,797.82

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Solution

The fourth proportional to 3,124.12, 4,311.28 and 1,797.82 is: 2,480.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.12 : 4,311.28 = 1,797.82 : x
  2. Step 2: Convert to fraction form
    3,124.12/4,311.28 = 1,797.82/x
  3. Step 3: Cross multiply
    3,124.12x = 4,311.28 × 1,797.82
  4. Step 4: Simplify right side
    3,124.12x = 7,750,898.89
  5. Step 5: Solve for x
    x = 7,750,898.89/3,124.12
  6. Step 6: Final answer
    x = 2,480.99

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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.