Home / 4,243.28-5,855.74-2,380.28

Finding the Fourth Proportional to 4,243.28, 5,855.74 and 2,380.28

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Solution

The fourth proportional to 4,243.28, 5,855.74 and 2,380.28 is: 3,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.28 : 5,855.74 = 2,380.28 : x
  2. Step 2: Convert to fraction form
    4,243.28/5,855.74 = 2,380.28/x
  3. Step 3: Cross multiply
    4,243.28x = 5,855.74 × 2,380.28
  4. Step 4: Simplify right side
    4,243.28x = 13,938,300.81
  5. Step 5: Solve for x
    x = 13,938,300.81/4,243.28
  6. Step 6: Final answer
    x = 3,284.79

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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.