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Finding the Fourth Proportional to 6,554.36, 9,043.86 and 3,865.70

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Solution

The fourth proportional to 6,554.36, 9,043.86 and 3,865.70 is: 5,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,554.36 : 9,043.86 = 3,865.70 : x
  2. Step 2: Convert to fraction form
    6,554.36/9,043.86 = 3,865.70/x
  3. Step 3: Cross multiply
    6,554.36x = 9,043.86 × 3,865.70
  4. Step 4: Simplify right side
    6,554.36x = 34,960,849.60
  5. Step 5: Solve for x
    x = 34,960,849.60/6,554.36
  6. Step 6: Final answer
    x = 5,333.98

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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.