Home / 3,124.14-4,686.09-1,275.21

Finding the Fourth Proportional to 3,124.14, 4,686.09 and 1,275.21

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Solution

The fourth proportional to 3,124.14, 4,686.09 and 1,275.21 is: 1,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.14 : 4,686.09 = 1,275.21 : x
  2. Step 2: Convert to fraction form
    3,124.14/4,686.09 = 1,275.21/x
  3. Step 3: Cross multiply
    3,124.14x = 4,686.09 × 1,275.21
  4. Step 4: Simplify right side
    3,124.14x = 5,975,744.05
  5. Step 5: Solve for x
    x = 5,975,744.05/3,124.14
  6. Step 6: Final answer
    x = 1,912.77

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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.