Home / 5,385-8,077.50-1,436.27

Finding the Fourth Proportional to 5,385, 8,077.50 and 1,436.27

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Solution

The fourth proportional to 5,385, 8,077.50 and 1,436.27 is: 2,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385 : 8,077.50 = 1,436.27 : x
  2. Step 2: Convert to fraction form
    5,385/8,077.50 = 1,436.27/x
  3. Step 3: Cross multiply
    5,385x = 8,077.50 × 1,436.27
  4. Step 4: Simplify right side
    5,385x = 11,601,470.93
  5. Step 5: Solve for x
    x = 11,601,470.93/5,385
  6. Step 6: Final answer
    x = 2,154.41

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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.