Home / 3,725.81-5,140.14-2,400.28

Finding the Fourth Proportional to 3,725.81, 5,140.14 and 2,400.28

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Solution

The fourth proportional to 3,725.81, 5,140.14 and 2,400.28 is: 3,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.81 : 5,140.14 = 2,400.28 : x
  2. Step 2: Convert to fraction form
    3,725.81/5,140.14 = 2,400.28/x
  3. Step 3: Cross multiply
    3,725.81x = 5,140.14 × 2,400.28
  4. Step 4: Simplify right side
    3,725.81x = 12,337,749.54
  5. Step 5: Solve for x
    x = 12,337,749.54/3,725.81
  6. Step 6: Final answer
    x = 3,311.43

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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.