Home / 3,318.18-4,578.87-1,901.85

Finding the Fourth Proportional to 3,318.18, 4,578.87 and 1,901.85

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Solution

The fourth proportional to 3,318.18, 4,578.87 and 1,901.85 is: 2,624.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.18 : 4,578.87 = 1,901.85 : x
  2. Step 2: Convert to fraction form
    3,318.18/4,578.87 = 1,901.85/x
  3. Step 3: Cross multiply
    3,318.18x = 4,578.87 × 1,901.85
  4. Step 4: Simplify right side
    3,318.18x = 8,708,323.91
  5. Step 5: Solve for x
    x = 8,708,323.91/3,318.18
  6. Step 6: Final answer
    x = 2,624.43

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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.