Home / 2,678.12-3,701.22-2,088.04

Finding the Fourth Proportional to 2,678.12, 3,701.22 and 2,088.04

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Solution

The fourth proportional to 2,678.12, 3,701.22 and 2,088.04 is: 2,885.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.12 : 3,701.22 = 2,088.04 : x
  2. Step 2: Convert to fraction form
    2,678.12/3,701.22 = 2,088.04/x
  3. Step 3: Cross multiply
    2,678.12x = 3,701.22 × 2,088.04
  4. Step 4: Simplify right side
    2,678.12x = 7,728,295.41
  5. Step 5: Solve for x
    x = 7,728,295.41/2,678.12
  6. Step 6: Final answer
    x = 2,885.72

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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.