Home / 3,833.28-5,290.20-2,825.40

Finding the Fourth Proportional to 3,833.28, 5,290.20 and 2,825.40

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Solution

The fourth proportional to 3,833.28, 5,290.20 and 2,825.40 is: 3,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.28 : 5,290.20 = 2,825.40 : x
  2. Step 2: Convert to fraction form
    3,833.28/5,290.20 = 2,825.40/x
  3. Step 3: Cross multiply
    3,833.28x = 5,290.20 × 2,825.40
  4. Step 4: Simplify right side
    3,833.28x = 14,946,931.08
  5. Step 5: Solve for x
    x = 14,946,931.08/3,833.28
  6. Step 6: Final answer
    x = 3,899.25

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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.