Home / 1,620.43-2,426.99-1,135.64

Finding the Fourth Proportional to 1,620.43, 2,426.99 and 1,135.64

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Solution

The fourth proportional to 1,620.43, 2,426.99 and 1,135.64 is: 1,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.43 : 2,426.99 = 1,135.64 : x
  2. Step 2: Convert to fraction form
    1,620.43/2,426.99 = 1,135.64/x
  3. Step 3: Cross multiply
    1,620.43x = 2,426.99 × 1,135.64
  4. Step 4: Simplify right side
    1,620.43x = 2,756,186.92
  5. Step 5: Solve for x
    x = 2,756,186.92/1,620.43
  6. Step 6: Final answer
    x = 1,700.90

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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.