Home / 2,818.82-3,889.09-1,700.11

Finding the Fourth Proportional to 2,818.82, 3,889.09 and 1,700.11

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Solution

The fourth proportional to 2,818.82, 3,889.09 and 1,700.11 is: 2,345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.82 : 3,889.09 = 1,700.11 : x
  2. Step 2: Convert to fraction form
    2,818.82/3,889.09 = 1,700.11/x
  3. Step 3: Cross multiply
    2,818.82x = 3,889.09 × 1,700.11
  4. Step 4: Simplify right side
    2,818.82x = 6,611,861.35
  5. Step 5: Solve for x
    x = 6,611,861.35/2,818.82
  6. Step 6: Final answer
    x = 2,345.62

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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.