Home / 5,408.96-8,117.04-2,813.72

Finding the Fourth Proportional to 5,408.96, 8,117.04 and 2,813.72

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Solution

The fourth proportional to 5,408.96, 8,117.04 and 2,813.72 is: 4,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.96 : 8,117.04 = 2,813.72 : x
  2. Step 2: Convert to fraction form
    5,408.96/8,117.04 = 2,813.72/x
  3. Step 3: Cross multiply
    5,408.96x = 8,117.04 × 2,813.72
  4. Step 4: Simplify right side
    5,408.96x = 22,839,077.79
  5. Step 5: Solve for x
    x = 22,839,077.79/5,408.96
  6. Step 6: Final answer
    x = 4,222.45

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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.