Home / 5,103.12-7,647.36-2,907.31

Finding the Fourth Proportional to 5,103.12, 7,647.36 and 2,907.31

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Solution

The fourth proportional to 5,103.12, 7,647.36 and 2,907.31 is: 4,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.12 : 7,647.36 = 2,907.31 : x
  2. Step 2: Convert to fraction form
    5,103.12/7,647.36 = 2,907.31/x
  3. Step 3: Cross multiply
    5,103.12x = 7,647.36 × 2,907.31
  4. Step 4: Simplify right side
    5,103.12x = 22,233,246.20
  5. Step 5: Solve for x
    x = 22,233,246.20/5,103.12
  6. Step 6: Final answer
    x = 4,356.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.