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Finding the Fourth Proportional to 5,887.91, 8,831.63 and 1,992.31

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Solution

The fourth proportional to 5,887.91, 8,831.63 and 1,992.31 is: 2,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887.91 : 8,831.63 = 1,992.31 : x
  2. Step 2: Convert to fraction form
    5,887.91/8,831.63 = 1,992.31/x
  3. Step 3: Cross multiply
    5,887.91x = 8,831.63 × 1,992.31
  4. Step 4: Simplify right side
    5,887.91x = 17,595,377.34
  5. Step 5: Solve for x
    x = 17,595,377.34/5,887.91
  6. Step 6: Final answer
    x = 2,988.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.