Home / 5,436.18-8,149.32-1,972.62

Finding the Fourth Proportional to 5,436.18, 8,149.32 and 1,972.62

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Solution

The fourth proportional to 5,436.18, 8,149.32 and 1,972.62 is: 2,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.18 : 8,149.32 = 1,972.62 : x
  2. Step 2: Convert to fraction form
    5,436.18/8,149.32 = 1,972.62/x
  3. Step 3: Cross multiply
    5,436.18x = 8,149.32 × 1,972.62
  4. Step 4: Simplify right side
    5,436.18x = 16,075,511.62
  5. Step 5: Solve for x
    x = 16,075,511.62/5,436.18
  6. Step 6: Final answer
    x = 2,957.13

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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.