Home / 3,458.14-5,189.99-1,815.66

Finding the Fourth Proportional to 3,458.14, 5,189.99 and 1,815.66

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Solution

The fourth proportional to 3,458.14, 5,189.99 and 1,815.66 is: 2,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.14 : 5,189.99 = 1,815.66 : x
  2. Step 2: Convert to fraction form
    3,458.14/5,189.99 = 1,815.66/x
  3. Step 3: Cross multiply
    3,458.14x = 5,189.99 × 1,815.66
  4. Step 4: Simplify right side
    3,458.14x = 9,423,248.17
  5. Step 5: Solve for x
    x = 9,423,248.17/3,458.14
  6. Step 6: Final answer
    x = 2,724.95

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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.