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Finding the Fourth Proportional to 5,887.76, 8,832.40 and 1,939.68

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Solution

The fourth proportional to 5,887.76, 8,832.40 and 1,939.68 is: 2,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887.76 : 8,832.40 = 1,939.68 : x
  2. Step 2: Convert to fraction form
    5,887.76/8,832.40 = 1,939.68/x
  3. Step 3: Cross multiply
    5,887.76x = 8,832.40 × 1,939.68
  4. Step 4: Simplify right side
    5,887.76x = 17,132,029.63
  5. Step 5: Solve for x
    x = 17,132,029.63/5,887.76
  6. Step 6: Final answer
    x = 2,909.77

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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.