Home / 5,728.30-7,903.90-3,371.20

Finding the Fourth Proportional to 5,728.30, 7,903.90 and 3,371.20

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Solution

The fourth proportional to 5,728.30, 7,903.90 and 3,371.20 is: 4,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.30 : 7,903.90 = 3,371.20 : x
  2. Step 2: Convert to fraction form
    5,728.30/7,903.90 = 3,371.20/x
  3. Step 3: Cross multiply
    5,728.30x = 7,903.90 × 3,371.20
  4. Step 4: Simplify right side
    5,728.30x = 26,645,627.68
  5. Step 5: Solve for x
    x = 26,645,627.68/5,728.30
  6. Step 6: Final answer
    x = 4,651.58

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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.