Home / 3,725.12-5,138.70-2,328.68

Finding the Fourth Proportional to 3,725.12, 5,138.70 and 2,328.68

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Solution

The fourth proportional to 3,725.12, 5,138.70 and 2,328.68 is: 3,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.12 : 5,138.70 = 2,328.68 : x
  2. Step 2: Convert to fraction form
    3,725.12/5,138.70 = 2,328.68/x
  3. Step 3: Cross multiply
    3,725.12x = 5,138.70 × 2,328.68
  4. Step 4: Simplify right side
    3,725.12x = 11,966,387.92
  5. Step 5: Solve for x
    x = 11,966,387.92/3,725.12
  6. Step 6: Final answer
    x = 3,212.35

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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.