Home / 5,107.12-7,653.36-2,911.32

Finding the Fourth Proportional to 5,107.12, 7,653.36 and 2,911.32

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Solution

The fourth proportional to 5,107.12, 7,653.36 and 2,911.32 is: 4,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.12 : 7,653.36 = 2,911.32 : x
  2. Step 2: Convert to fraction form
    5,107.12/7,653.36 = 2,911.32/x
  3. Step 3: Cross multiply
    5,107.12x = 7,653.36 × 2,911.32
  4. Step 4: Simplify right side
    5,107.12x = 22,281,380.04
  5. Step 5: Solve for x
    x = 22,281,380.04/5,107.12
  6. Step 6: Final answer
    x = 4,362.81

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1.5x scale

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.