Home / 2,051.55-3,080.57-1,620.63

Finding the Fourth Proportional to 2,051.55, 3,080.57 and 1,620.63

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Solution

The fourth proportional to 2,051.55, 3,080.57 and 1,620.63 is: 2,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.55 : 3,080.57 = 1,620.63 : x
  2. Step 2: Convert to fraction form
    2,051.55/3,080.57 = 1,620.63/x
  3. Step 3: Cross multiply
    2,051.55x = 3,080.57 × 1,620.63
  4. Step 4: Simplify right side
    2,051.55x = 4,992,464.16
  5. Step 5: Solve for x
    x = 4,992,464.16/2,051.55
  6. Step 6: Final answer
    x = 2,433.51

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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.