Home / 1,559.43-2,149.86-1,245.75

Finding the Fourth Proportional to 1,559.43, 2,149.86 and 1,245.75

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Solution

The fourth proportional to 1,559.43, 2,149.86 and 1,245.75 is: 1,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.43 : 2,149.86 = 1,245.75 : x
  2. Step 2: Convert to fraction form
    1,559.43/2,149.86 = 1,245.75/x
  3. Step 3: Cross multiply
    1,559.43x = 2,149.86 × 1,245.75
  4. Step 4: Simplify right side
    1,559.43x = 2,678,188.10
  5. Step 5: Solve for x
    x = 2,678,188.10/1,559.43
  6. Step 6: Final answer
    x = 1,717.41

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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.