Home / 5,436.71-8,153.84-2,660.58

Finding the Fourth Proportional to 5,436.71, 8,153.84 and 2,660.58

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Solution

The fourth proportional to 5,436.71, 8,153.84 and 2,660.58 is: 3,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.71 : 8,153.84 = 2,660.58 : x
  2. Step 2: Convert to fraction form
    5,436.71/8,153.84 = 2,660.58/x
  3. Step 3: Cross multiply
    5,436.71x = 8,153.84 × 2,660.58
  4. Step 4: Simplify right side
    5,436.71x = 21,693,930.32
  5. Step 5: Solve for x
    x = 21,693,930.32/5,436.71
  6. Step 6: Final answer
    x = 3,990.27

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1.5x scale

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.