Home / 5,825.30-8,038.96-3,172.72

Finding the Fourth Proportional to 5,825.30, 8,038.96 and 3,172.72

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Solution

The fourth proportional to 5,825.30, 8,038.96 and 3,172.72 is: 4,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,825.30 : 8,038.96 = 3,172.72 : x
  2. Step 2: Convert to fraction form
    5,825.30/8,038.96 = 3,172.72/x
  3. Step 3: Cross multiply
    5,825.30x = 8,038.96 × 3,172.72
  4. Step 4: Simplify right side
    5,825.30x = 25,505,369.17
  5. Step 5: Solve for x
    x = 25,505,369.17/5,825.30
  6. Step 6: Final answer
    x = 4,378.38

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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.