Home / 3,124.20-4,688.60-1,480.75

Finding the Fourth Proportional to 3,124.20, 4,688.60 and 1,480.75

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Solution

The fourth proportional to 3,124.20, 4,688.60 and 1,480.75 is: 2,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.20 : 4,688.60 = 1,480.75 : x
  2. Step 2: Convert to fraction form
    3,124.20/4,688.60 = 1,480.75/x
  3. Step 3: Cross multiply
    3,124.20x = 4,688.60 × 1,480.75
  4. Step 4: Simplify right side
    3,124.20x = 6,942,633.65
  5. Step 5: Solve for x
    x = 6,942,633.65/3,124.20
  6. Step 6: Final answer
    x = 2,222.21

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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.