Home / 3,140.12-4,333.43-1,723.86

Finding the Fourth Proportional to 3,140.12, 4,333.43 and 1,723.86

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Solution

The fourth proportional to 3,140.12, 4,333.43 and 1,723.86 is: 2,378.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.12 : 4,333.43 = 1,723.86 : x
  2. Step 2: Convert to fraction form
    3,140.12/4,333.43 = 1,723.86/x
  3. Step 3: Cross multiply
    3,140.12x = 4,333.43 × 1,723.86
  4. Step 4: Simplify right side
    3,140.12x = 7,470,218.02
  5. Step 5: Solve for x
    x = 7,470,218.02/3,140.12
  6. Step 6: Final answer
    x = 2,378.96

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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.