Home / 5,618.71-7,754.16-3,228.85

Finding the Fourth Proportional to 5,618.71, 7,754.16 and 3,228.85

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Solution

The fourth proportional to 5,618.71, 7,754.16 and 3,228.85 is: 4,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.71 : 7,754.16 = 3,228.85 : x
  2. Step 2: Convert to fraction form
    5,618.71/7,754.16 = 3,228.85/x
  3. Step 3: Cross multiply
    5,618.71x = 7,754.16 × 3,228.85
  4. Step 4: Simplify right side
    5,618.71x = 25,037,019.52
  5. Step 5: Solve for x
    x = 25,037,019.52/5,618.71
  6. Step 6: Final answer
    x = 4,456.01

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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.