Home / 1,723.14-2,387.97-1,690.32

Finding the Fourth Proportional to 1,723.14, 2,387.97 and 1,690.32

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Solution

The fourth proportional to 1,723.14, 2,387.97 and 1,690.32 is: 2,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.14 : 2,387.97 = 1,690.32 : x
  2. Step 2: Convert to fraction form
    1,723.14/2,387.97 = 1,690.32/x
  3. Step 3: Cross multiply
    1,723.14x = 2,387.97 × 1,690.32
  4. Step 4: Simplify right side
    1,723.14x = 4,036,433.45
  5. Step 5: Solve for x
    x = 4,036,433.45/1,723.14
  6. Step 6: Final answer
    x = 2,342.49

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.