Home / 1,867.30-2,800.04-1,087.57

Finding the Fourth Proportional to 1,867.30, 2,800.04 and 1,087.57

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Solution

The fourth proportional to 1,867.30, 2,800.04 and 1,087.57 is: 1,630.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.30 : 2,800.04 = 1,087.57 : x
  2. Step 2: Convert to fraction form
    1,867.30/2,800.04 = 1,087.57/x
  3. Step 3: Cross multiply
    1,867.30x = 2,800.04 × 1,087.57
  4. Step 4: Simplify right side
    1,867.30x = 3,045,237.56
  5. Step 5: Solve for x
    x = 3,045,237.56/1,867.30
  6. Step 6: Final answer
    x = 1,630.83

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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.