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Finding the Fourth Proportional to 5,661.68, 8,489.79 and 2,373.89

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Solution

The fourth proportional to 5,661.68, 8,489.79 and 2,373.89 is: 3,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.68 : 8,489.79 = 2,373.89 : x
  2. Step 2: Convert to fraction form
    5,661.68/8,489.79 = 2,373.89/x
  3. Step 3: Cross multiply
    5,661.68x = 8,489.79 × 2,373.89
  4. Step 4: Simplify right side
    5,661.68x = 20,153,848.81
  5. Step 5: Solve for x
    x = 20,153,848.81/5,661.68
  6. Step 6: Final answer
    x = 3,559.69

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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.