Home / 3,089.12-4,257.84-2,458.56

Finding the Fourth Proportional to 3,089.12, 4,257.84 and 2,458.56

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Solution

The fourth proportional to 3,089.12, 4,257.84 and 2,458.56 is: 3,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.12 : 4,257.84 = 2,458.56 : x
  2. Step 2: Convert to fraction form
    3,089.12/4,257.84 = 2,458.56/x
  3. Step 3: Cross multiply
    3,089.12x = 4,257.84 × 2,458.56
  4. Step 4: Simplify right side
    3,089.12x = 10,468,155.11
  5. Step 5: Solve for x
    x = 10,468,155.11/3,089.12
  6. Step 6: Final answer
    x = 3,388.72

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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.