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Finding the Fourth Proportional to 5,295.80, 7,983.50 and 4,939.07

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Solution

The fourth proportional to 5,295.80, 7,983.50 and 4,939.07 is: 7,445.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.80 : 7,983.50 = 4,939.07 : x
  2. Step 2: Convert to fraction form
    5,295.80/7,983.50 = 4,939.07/x
  3. Step 3: Cross multiply
    5,295.80x = 7,983.50 × 4,939.07
  4. Step 4: Simplify right side
    5,295.80x = 39,431,000.73
  5. Step 5: Solve for x
    x = 39,431,000.73/5,295.80
  6. Step 6: Final answer
    x = 7,445.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.