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Finding the Fourth Proportional to 5,889.51, 8,127.93 and 3,896.61

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Solution

The fourth proportional to 5,889.51, 8,127.93 and 3,896.61 is: 5,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889.51 : 8,127.93 = 3,896.61 : x
  2. Step 2: Convert to fraction form
    5,889.51/8,127.93 = 3,896.61/x
  3. Step 3: Cross multiply
    5,889.51x = 8,127.93 × 3,896.61
  4. Step 4: Simplify right side
    5,889.51x = 31,671,373.32
  5. Step 5: Solve for x
    x = 31,671,373.32/5,889.51
  6. Step 6: Final answer
    x = 5,377.59

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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.