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Finding the Fourth Proportional to 4,845.71, 7,269.47 and 2,379.87

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Solution

The fourth proportional to 4,845.71, 7,269.47 and 2,379.87 is: 3,570.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.71 : 7,269.47 = 2,379.87 : x
  2. Step 2: Convert to fraction form
    4,845.71/7,269.47 = 2,379.87/x
  3. Step 3: Cross multiply
    4,845.71x = 7,269.47 × 2,379.87
  4. Step 4: Simplify right side
    4,845.71x = 17,300,381.67
  5. Step 5: Solve for x
    x = 17,300,381.67/4,845.71
  6. Step 6: Final answer
    x = 3,570.25

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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.