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Finding the Fourth Proportional to 5,640.94, 7,777.04 and 4,628.94

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Solution

The fourth proportional to 5,640.94, 7,777.04 and 4,628.94 is: 6,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.94 : 7,777.04 = 4,628.94 : x
  2. Step 2: Convert to fraction form
    5,640.94/7,777.04 = 4,628.94/x
  3. Step 3: Cross multiply
    5,640.94x = 7,777.04 × 4,628.94
  4. Step 4: Simplify right side
    5,640.94x = 35,999,451.54
  5. Step 5: Solve for x
    x = 35,999,451.54/5,640.94
  6. Step 6: Final answer
    x = 6,381.82

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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.