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Finding the Fourth Proportional to 5,586.64, 8,379.96 and 1,887.88

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Solution

The fourth proportional to 5,586.64, 8,379.96 and 1,887.88 is: 2,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.64 : 8,379.96 = 1,887.88 : x
  2. Step 2: Convert to fraction form
    5,586.64/8,379.96 = 1,887.88/x
  3. Step 3: Cross multiply
    5,586.64x = 8,379.96 × 1,887.88
  4. Step 4: Simplify right side
    5,586.64x = 15,820,358.88
  5. Step 5: Solve for x
    x = 15,820,358.88/5,586.64
  6. Step 6: Final answer
    x = 2,831.82

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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.