Home / 3,140.46-4,333.82-1,724.17

Finding the Fourth Proportional to 3,140.46, 4,333.82 and 1,724.17

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Solution

The fourth proportional to 3,140.46, 4,333.82 and 1,724.17 is: 2,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.46 : 4,333.82 = 1,724.17 : x
  2. Step 2: Convert to fraction form
    3,140.46/4,333.82 = 1,724.17/x
  3. Step 3: Cross multiply
    3,140.46x = 4,333.82 × 1,724.17
  4. Step 4: Simplify right side
    3,140.46x = 7,472,234.89
  5. Step 5: Solve for x
    x = 7,472,234.89/3,140.46
  6. Step 6: Final answer
    x = 2,379.34

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1.5x scale

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.