Home / 3,124.43-4,308.21-2,130.29

Finding the Fourth Proportional to 3,124.43, 4,308.21 and 2,130.29

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Solution

The fourth proportional to 3,124.43, 4,308.21 and 2,130.29 is: 2,937.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.43 : 4,308.21 = 2,130.29 : x
  2. Step 2: Convert to fraction form
    3,124.43/4,308.21 = 2,130.29/x
  3. Step 3: Cross multiply
    3,124.43x = 4,308.21 × 2,130.29
  4. Step 4: Simplify right side
    3,124.43x = 9,177,736.68
  5. Step 5: Solve for x
    x = 9,177,736.68/3,124.43
  6. Step 6: Final answer
    x = 2,937.41

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1.5x scale

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.