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Finding the Fourth Proportional to 4,885.50, 6,743.22 and 2,790.84

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Solution

The fourth proportional to 4,885.50, 6,743.22 and 2,790.84 is: 3,852.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.50 : 6,743.22 = 2,790.84 : x
  2. Step 2: Convert to fraction form
    4,885.50/6,743.22 = 2,790.84/x
  3. Step 3: Cross multiply
    4,885.50x = 6,743.22 × 2,790.84
  4. Step 4: Simplify right side
    4,885.50x = 18,819,248.10
  5. Step 5: Solve for x
    x = 18,819,248.10/4,885.50
  6. Step 6: Final answer
    x = 3,852.06

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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.