Home / 3,880.26-5,354.28-2,830.50

Finding the Fourth Proportional to 3,880.26, 5,354.28 and 2,830.50

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Solution

The fourth proportional to 3,880.26, 5,354.28 and 2,830.50 is: 3,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.26 : 5,354.28 = 2,830.50 : x
  2. Step 2: Convert to fraction form
    3,880.26/5,354.28 = 2,830.50/x
  3. Step 3: Cross multiply
    3,880.26x = 5,354.28 × 2,830.50
  4. Step 4: Simplify right side
    3,880.26x = 15,155,289.54
  5. Step 5: Solve for x
    x = 15,155,289.54/3,880.26
  6. Step 6: Final answer
    x = 3,905.74

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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.