Home / 3,021.91-4,171.60-1,888.62

Finding the Fourth Proportional to 3,021.91, 4,171.60 and 1,888.62

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Solution

The fourth proportional to 3,021.91, 4,171.60 and 1,888.62 is: 2,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.91 : 4,171.60 = 1,888.62 : x
  2. Step 2: Convert to fraction form
    3,021.91/4,171.60 = 1,888.62/x
  3. Step 3: Cross multiply
    3,021.91x = 4,171.60 × 1,888.62
  4. Step 4: Simplify right side
    3,021.91x = 7,878,553.91
  5. Step 5: Solve for x
    x = 7,878,553.91/3,021.91
  6. Step 6: Final answer
    x = 2,607.15

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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.