Home / 5,107.05-7,047.47-2,869.02

Finding the Fourth Proportional to 5,107.05, 7,047.47 and 2,869.02

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Solution

The fourth proportional to 5,107.05, 7,047.47 and 2,869.02 is: 3,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.05 : 7,047.47 = 2,869.02 : x
  2. Step 2: Convert to fraction form
    5,107.05/7,047.47 = 2,869.02/x
  3. Step 3: Cross multiply
    5,107.05x = 7,047.47 × 2,869.02
  4. Step 4: Simplify right side
    5,107.05x = 20,219,318.03
  5. Step 5: Solve for x
    x = 20,219,318.03/5,107.05
  6. Step 6: Final answer
    x = 3,959.10

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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.