Home / 3,418.31-4,717.77-2,091.80

Finding the Fourth Proportional to 3,418.31, 4,717.77 and 2,091.80

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Solution

The fourth proportional to 3,418.31, 4,717.77 and 2,091.80 is: 2,886.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.31 : 4,717.77 = 2,091.80 : x
  2. Step 2: Convert to fraction form
    3,418.31/4,717.77 = 2,091.80/x
  3. Step 3: Cross multiply
    3,418.31x = 4,717.77 × 2,091.80
  4. Step 4: Simplify right side
    3,418.31x = 9,868,631.29
  5. Step 5: Solve for x
    x = 9,868,631.29/3,418.31
  6. Step 6: Final answer
    x = 2,886.99

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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.