Home / 5,107.22-7,047.81-2,869.10

Finding the Fourth Proportional to 5,107.22, 7,047.81 and 2,869.10

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Solution

The fourth proportional to 5,107.22, 7,047.81 and 2,869.10 is: 3,959.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.22 : 7,047.81 = 2,869.10 : x
  2. Step 2: Convert to fraction form
    5,107.22/7,047.81 = 2,869.10/x
  3. Step 3: Cross multiply
    5,107.22x = 7,047.81 × 2,869.10
  4. Step 4: Simplify right side
    5,107.22x = 20,220,871.67
  5. Step 5: Solve for x
    x = 20,220,871.67/5,107.22
  6. Step 6: Final answer
    x = 3,959.27

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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.