Home / 2,127.05-3,184.65-1,084.80

Finding the Fourth Proportional to 2,127.05, 3,184.65 and 1,084.80

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Solution

The fourth proportional to 2,127.05, 3,184.65 and 1,084.80 is: 1,624.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.05 : 3,184.65 = 1,084.80 : x
  2. Step 2: Convert to fraction form
    2,127.05/3,184.65 = 1,084.80/x
  3. Step 3: Cross multiply
    2,127.05x = 3,184.65 × 1,084.80
  4. Step 4: Simplify right side
    2,127.05x = 3,454,708.32
  5. Step 5: Solve for x
    x = 3,454,708.32/2,127.05
  6. Step 6: Final answer
    x = 1,624.18

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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.