Home / 2,720.64-4,087.80-1,733.90

Finding the Fourth Proportional to 2,720.64, 4,087.80 and 1,733.90

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Solution

The fourth proportional to 2,720.64, 4,087.80 and 1,733.90 is: 2,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.64 : 4,087.80 = 1,733.90 : x
  2. Step 2: Convert to fraction form
    2,720.64/4,087.80 = 1,733.90/x
  3. Step 3: Cross multiply
    2,720.64x = 4,087.80 × 1,733.90
  4. Step 4: Simplify right side
    2,720.64x = 7,087,815.98
  5. Step 5: Solve for x
    x = 7,087,815.98/2,720.64
  6. Step 6: Final answer
    x = 2,605.20

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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.