Home / 3,187.83-4,398.99-1,771.38

Finding the Fourth Proportional to 3,187.83, 4,398.99 and 1,771.38

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Solution

The fourth proportional to 3,187.83, 4,398.99 and 1,771.38 is: 2,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.83 : 4,398.99 = 1,771.38 : x
  2. Step 2: Convert to fraction form
    3,187.83/4,398.99 = 1,771.38/x
  3. Step 3: Cross multiply
    3,187.83x = 4,398.99 × 1,771.38
  4. Step 4: Simplify right side
    3,187.83x = 7,792,282.91
  5. Step 5: Solve for x
    x = 7,792,282.91/3,187.83
  6. Step 6: Final answer
    x = 2,444.38

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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.