Home / 3,571.12-5,354.64-1,720.72

Finding the Fourth Proportional to 3,571.12, 5,354.64 and 1,720.72

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Solution

The fourth proportional to 3,571.12, 5,354.64 and 1,720.72 is: 2,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.12 : 5,354.64 = 1,720.72 : x
  2. Step 2: Convert to fraction form
    3,571.12/5,354.64 = 1,720.72/x
  3. Step 3: Cross multiply
    3,571.12x = 5,354.64 × 1,720.72
  4. Step 4: Simplify right side
    3,571.12x = 9,213,836.14
  5. Step 5: Solve for x
    x = 9,213,836.14/3,571.12
  6. Step 6: Final answer
    x = 2,580.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.