Home / 5,406.79-8,107.66-2,809.03

Finding the Fourth Proportional to 5,406.79, 8,107.66 and 2,809.03

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Solution

The fourth proportional to 5,406.79, 8,107.66 and 2,809.03 is: 4,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.79 : 8,107.66 = 2,809.03 : x
  2. Step 2: Convert to fraction form
    5,406.79/8,107.66 = 2,809.03/x
  3. Step 3: Cross multiply
    5,406.79x = 8,107.66 × 2,809.03
  4. Step 4: Simplify right side
    5,406.79x = 22,774,660.17
  5. Step 5: Solve for x
    x = 22,774,660.17/5,406.79
  6. Step 6: Final answer
    x = 4,212.23

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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.