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Finding the Fourth Proportional to 3,583.71, 5,373.47 and 2,123.89

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Solution

The fourth proportional to 3,583.71, 5,373.47 and 2,123.89 is: 3,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.71 : 5,373.47 = 2,123.89 : x
  2. Step 2: Convert to fraction form
    3,583.71/5,373.47 = 2,123.89/x
  3. Step 3: Cross multiply
    3,583.71x = 5,373.47 × 2,123.89
  4. Step 4: Simplify right side
    3,583.71x = 11,412,651.07
  5. Step 5: Solve for x
    x = 11,412,651.07/3,583.71
  6. Step 6: Final answer
    x = 3,184.59

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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.