Home / 7,141.21-9,853.89-4,154.74

Finding the Fourth Proportional to 7,141.21, 9,853.89 and 4,154.74

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Solution

The fourth proportional to 7,141.21, 9,853.89 and 4,154.74 is: 5,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.21 : 9,853.89 = 4,154.74 : x
  2. Step 2: Convert to fraction form
    7,141.21/9,853.89 = 4,154.74/x
  3. Step 3: Cross multiply
    7,141.21x = 9,853.89 × 4,154.74
  4. Step 4: Simplify right side
    7,141.21x = 40,940,350.94
  5. Step 5: Solve for x
    x = 40,940,350.94/7,141.21
  6. Step 6: Final answer
    x = 5,732.97

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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.