Home / 2,818.12-3,889.29-1,623.16

Finding the Fourth Proportional to 2,818.12, 3,889.29 and 1,623.16

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Solution

The fourth proportional to 2,818.12, 3,889.29 and 1,623.16 is: 2,240.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.12 : 3,889.29 = 1,623.16 : x
  2. Step 2: Convert to fraction form
    2,818.12/3,889.29 = 1,623.16/x
  3. Step 3: Cross multiply
    2,818.12x = 3,889.29 × 1,623.16
  4. Step 4: Simplify right side
    2,818.12x = 6,312,924.46
  5. Step 5: Solve for x
    x = 6,312,924.46/2,818.12
  6. Step 6: Final answer
    x = 2,240.12

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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.