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Finding the Fourth Proportional to 5,644.77, 7,790.69 and 3,406.98

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Solution

The fourth proportional to 5,644.77, 7,790.69 and 3,406.98 is: 4,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.77 : 7,790.69 = 3,406.98 : x
  2. Step 2: Convert to fraction form
    5,644.77/7,790.69 = 3,406.98/x
  3. Step 3: Cross multiply
    5,644.77x = 7,790.69 × 3,406.98
  4. Step 4: Simplify right side
    5,644.77x = 26,542,733.53
  5. Step 5: Solve for x
    x = 26,542,733.53/5,644.77
  6. Step 6: Final answer
    x = 4,702.18

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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.