Home / 5,628.12-7,761.76-4,687.03

Finding the Fourth Proportional to 5,628.12, 7,761.76 and 4,687.03

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Solution

The fourth proportional to 5,628.12, 7,761.76 and 4,687.03 is: 6,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.12 : 7,761.76 = 4,687.03 : x
  2. Step 2: Convert to fraction form
    5,628.12/7,761.76 = 4,687.03/x
  3. Step 3: Cross multiply
    5,628.12x = 7,761.76 × 4,687.03
  4. Step 4: Simplify right side
    5,628.12x = 36,379,601.97
  5. Step 5: Solve for x
    x = 36,379,601.97/5,628.12
  6. Step 6: Final answer
    x = 6,463.90

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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.