Home / 2,079.84-2,868.32-1,636.96

Finding the Fourth Proportional to 2,079.84, 2,868.32 and 1,636.96

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Solution

The fourth proportional to 2,079.84, 2,868.32 and 1,636.96 is: 2,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.84 : 2,868.32 = 1,636.96 : x
  2. Step 2: Convert to fraction form
    2,079.84/2,868.32 = 1,636.96/x
  3. Step 3: Cross multiply
    2,079.84x = 2,868.32 × 1,636.96
  4. Step 4: Simplify right side
    2,079.84x = 4,695,325.11
  5. Step 5: Solve for x
    x = 4,695,325.11/2,079.84
  6. Step 6: Final answer
    x = 2,257.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.