Home / 5,140.82-7,711.38-1,630.84

Finding the Fourth Proportional to 5,140.82, 7,711.38 and 1,630.84

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Solution

The fourth proportional to 5,140.82, 7,711.38 and 1,630.84 is: 2,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.82 : 7,711.38 = 1,630.84 : x
  2. Step 2: Convert to fraction form
    5,140.82/7,711.38 = 1,630.84/x
  3. Step 3: Cross multiply
    5,140.82x = 7,711.38 × 1,630.84
  4. Step 4: Simplify right side
    5,140.82x = 12,576,046.24
  5. Step 5: Solve for x
    x = 12,576,046.24/5,140.82
  6. Step 6: Final answer
    x = 2,446.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.