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Finding the Fourth Proportional to 5,640.44, 7,776.35 and 4,628.44

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Solution

The fourth proportional to 5,640.44, 7,776.35 and 4,628.44 is: 6,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.44 : 7,776.35 = 4,628.44 : x
  2. Step 2: Convert to fraction form
    5,640.44/7,776.35 = 4,628.44/x
  3. Step 3: Cross multiply
    5,640.44x = 7,776.35 × 4,628.44
  4. Step 4: Simplify right side
    5,640.44x = 35,992,369.39
  5. Step 5: Solve for x
    x = 35,992,369.39/5,640.44
  6. Step 6: Final answer
    x = 6,381.13

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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.