Home / 2,885.25-3,981.40-1,626.05

Finding the Fourth Proportional to 2,885.25, 3,981.40 and 1,626.05

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Solution

The fourth proportional to 2,885.25, 3,981.40 and 1,626.05 is: 2,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.25 : 3,981.40 = 1,626.05 : x
  2. Step 2: Convert to fraction form
    2,885.25/3,981.40 = 1,626.05/x
  3. Step 3: Cross multiply
    2,885.25x = 3,981.40 × 1,626.05
  4. Step 4: Simplify right side
    2,885.25x = 6,473,959.31
  5. Step 5: Solve for x
    x = 6,473,959.31/2,885.25
  6. Step 6: Final answer
    x = 2,243.82

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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.