Home / 3,418.32-4,717.45-2,091.63

Finding the Fourth Proportional to 3,418.32, 4,717.45 and 2,091.63

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Solution

The fourth proportional to 3,418.32, 4,717.45 and 2,091.63 is: 2,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.32 : 4,717.45 = 2,091.63 : x
  2. Step 2: Convert to fraction form
    3,418.32/4,717.45 = 2,091.63/x
  3. Step 3: Cross multiply
    3,418.32x = 4,717.45 × 2,091.63
  4. Step 4: Simplify right side
    3,418.32x = 9,867,131.13
  5. Step 5: Solve for x
    x = 9,867,131.13/3,418.32
  6. Step 6: Final answer
    x = 2,886.55

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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.