Home / 4,111.31-5,677.75-2,619.90

Finding the Fourth Proportional to 4,111.31, 5,677.75 and 2,619.90

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Solution

The fourth proportional to 4,111.31, 5,677.75 and 2,619.90 is: 3,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.31 : 5,677.75 = 2,619.90 : x
  2. Step 2: Convert to fraction form
    4,111.31/5,677.75 = 2,619.90/x
  3. Step 3: Cross multiply
    4,111.31x = 5,677.75 × 2,619.90
  4. Step 4: Simplify right side
    4,111.31x = 14,875,137.23
  5. Step 5: Solve for x
    x = 14,875,137.23/4,111.31
  6. Step 6: Final answer
    x = 3,618.10

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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.