Home / 1,639.10-2,259.57-1,245.44

Finding the Fourth Proportional to 1,639.10, 2,259.57 and 1,245.44

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Solution

The fourth proportional to 1,639.10, 2,259.57 and 1,245.44 is: 1,716.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.10 : 2,259.57 = 1,245.44 : x
  2. Step 2: Convert to fraction form
    1,639.10/2,259.57 = 1,245.44/x
  3. Step 3: Cross multiply
    1,639.10x = 2,259.57 × 1,245.44
  4. Step 4: Simplify right side
    1,639.10x = 2,814,158.86
  5. Step 5: Solve for x
    x = 2,814,158.86/1,639.10
  6. Step 6: Final answer
    x = 1,716.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.