Home / 5,898.68-8,140.34-3,381

Finding the Fourth Proportional to 5,898.68, 8,140.34 and 3,381

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Solution

The fourth proportional to 5,898.68, 8,140.34 and 3,381 is: 4,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,898.68 : 8,140.34 = 3,381 : x
  2. Step 2: Convert to fraction form
    5,898.68/8,140.34 = 3,381/x
  3. Step 3: Cross multiply
    5,898.68x = 8,140.34 × 3,381
  4. Step 4: Simplify right side
    5,898.68x = 27,522,489.54
  5. Step 5: Solve for x
    x = 27,522,489.54/5,898.68
  6. Step 6: Final answer
    x = 4,665.87

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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.