Home / 3,884.65-5,360.64-2,116.15

Finding the Fourth Proportional to 3,884.65, 5,360.64 and 2,116.15

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Solution

The fourth proportional to 3,884.65, 5,360.64 and 2,116.15 is: 2,920.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.65 : 5,360.64 = 2,116.15 : x
  2. Step 2: Convert to fraction form
    3,884.65/5,360.64 = 2,116.15/x
  3. Step 3: Cross multiply
    3,884.65x = 5,360.64 × 2,116.15
  4. Step 4: Simplify right side
    3,884.65x = 11,343,918.34
  5. Step 5: Solve for x
    x = 11,343,918.34/3,884.65
  6. Step 6: Final answer
    x = 2,920.19

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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.