Home / 3,187.35-4,400.73-2,439.99

Finding the Fourth Proportional to 3,187.35, 4,400.73 and 2,439.99

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Solution

The fourth proportional to 3,187.35, 4,400.73 and 2,439.99 is: 3,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.35 : 4,400.73 = 2,439.99 : x
  2. Step 2: Convert to fraction form
    3,187.35/4,400.73 = 2,439.99/x
  3. Step 3: Cross multiply
    3,187.35x = 4,400.73 × 2,439.99
  4. Step 4: Simplify right side
    3,187.35x = 10,737,737.19
  5. Step 5: Solve for x
    x = 10,737,737.19/3,187.35
  6. Step 6: Final answer
    x = 3,368.86

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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.