Home / 1,874.30-2,811.72-575.87

Finding the Fourth Proportional to 1,874.30, 2,811.72 and 575.87

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Solution

The fourth proportional to 1,874.30, 2,811.72 and 575.87 is: 863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.30 : 2,811.72 = 575.87 : x
  2. Step 2: Convert to fraction form
    1,874.30/2,811.72 = 575.87/x
  3. Step 3: Cross multiply
    1,874.30x = 2,811.72 × 575.87
  4. Step 4: Simplify right side
    1,874.30x = 1,619,185.20
  5. Step 5: Solve for x
    x = 1,619,185.20/1,874.30
  6. Step 6: Final answer
    x = 863.89

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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.