Home / 4,771.50-6,584.40-2,781.72

Finding the Fourth Proportional to 4,771.50, 6,584.40 and 2,781.72

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Solution

The fourth proportional to 4,771.50, 6,584.40 and 2,781.72 is: 3,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.50 : 6,584.40 = 2,781.72 : x
  2. Step 2: Convert to fraction form
    4,771.50/6,584.40 = 2,781.72/x
  3. Step 3: Cross multiply
    4,771.50x = 6,584.40 × 2,781.72
  4. Step 4: Simplify right side
    4,771.50x = 18,315,957.17
  5. Step 5: Solve for x
    x = 18,315,957.17/4,771.50
  6. Step 6: Final answer
    x = 3,838.62

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1.5x scale

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.