Home / 3,215.26-4,436.84-1,818.10

Finding the Fourth Proportional to 3,215.26, 4,436.84 and 1,818.10

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Solution

The fourth proportional to 3,215.26, 4,436.84 and 1,818.10 is: 2,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.26 : 4,436.84 = 1,818.10 : x
  2. Step 2: Convert to fraction form
    3,215.26/4,436.84 = 1,818.10/x
  3. Step 3: Cross multiply
    3,215.26x = 4,436.84 × 1,818.10
  4. Step 4: Simplify right side
    3,215.26x = 8,066,618.80
  5. Step 5: Solve for x
    x = 8,066,618.80/3,215.26
  6. Step 6: Final answer
    x = 2,508.85

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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.