Home / 2,275.75-3,410.45-1,720.00

Finding the Fourth Proportional to 2,275.75, 3,410.45 and 1,720.00

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Solution

The fourth proportional to 2,275.75, 3,410.45 and 1,720.00 is: 2,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.75 : 3,410.45 = 1,720.00 : x
  2. Step 2: Convert to fraction form
    2,275.75/3,410.45 = 1,720.00/x
  3. Step 3: Cross multiply
    2,275.75x = 3,410.45 × 1,720.00
  4. Step 4: Simplify right side
    2,275.75x = 5,865,982.56
  5. Step 5: Solve for x
    x = 5,865,982.56/2,275.75
  6. Step 6: Final answer
    x = 2,577.60

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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.