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Finding the Fourth Proportional to 6,005.84, 8,280.70 and 4,939.88

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Solution

The fourth proportional to 6,005.84, 8,280.70 and 4,939.88 is: 6,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,005.84 : 8,280.70 = 4,939.88 : x
  2. Step 2: Convert to fraction form
    6,005.84/8,280.70 = 4,939.88/x
  3. Step 3: Cross multiply
    6,005.84x = 8,280.70 × 4,939.88
  4. Step 4: Simplify right side
    6,005.84x = 40,905,610.56
  5. Step 5: Solve for x
    x = 40,905,610.56/6,005.84
  6. Step 6: Final answer
    x = 6,810.98

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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.