Home / 3,318.14-4,578.95-1,805.66

Finding the Fourth Proportional to 3,318.14, 4,578.95 and 1,805.66

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Solution

The fourth proportional to 3,318.14, 4,578.95 and 1,805.66 is: 2,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.14 : 4,578.95 = 1,805.66 : x
  2. Step 2: Convert to fraction form
    3,318.14/4,578.95 = 1,805.66/x
  3. Step 3: Cross multiply
    3,318.14x = 4,578.95 × 1,805.66
  4. Step 4: Simplify right side
    3,318.14x = 8,268,026.86
  5. Step 5: Solve for x
    x = 8,268,026.86/3,318.14
  6. Step 6: Final answer
    x = 2,491.77

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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.