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Finding the Fourth Proportional to 5,285.79, 7,936.46 and 2,950.35

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Solution

The fourth proportional to 5,285.79, 7,936.46 and 2,950.35 is: 4,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.79 : 7,936.46 = 2,950.35 : x
  2. Step 2: Convert to fraction form
    5,285.79/7,936.46 = 2,950.35/x
  3. Step 3: Cross multiply
    5,285.79x = 7,936.46 × 2,950.35
  4. Step 4: Simplify right side
    5,285.79x = 23,415,320.01
  5. Step 5: Solve for x
    x = 23,415,320.01/5,285.79
  6. Step 6: Final answer
    x = 4,429.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.