Home / 3,120.48-4,306.32-1,723.23

Finding the Fourth Proportional to 3,120.48, 4,306.32 and 1,723.23

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Solution

The fourth proportional to 3,120.48, 4,306.32 and 1,723.23 is: 2,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.48 : 4,306.32 = 1,723.23 : x
  2. Step 2: Convert to fraction form
    3,120.48/4,306.32 = 1,723.23/x
  3. Step 3: Cross multiply
    3,120.48x = 4,306.32 × 1,723.23
  4. Step 4: Simplify right side
    3,120.48x = 7,420,779.81
  5. Step 5: Solve for x
    x = 7,420,779.81/3,120.48
  6. Step 6: Final answer
    x = 2,378.09

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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.