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Finding the Fourth Proportional to 1,874.55, 2,811.72 and 576.03

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Solution

The fourth proportional to 1,874.55, 2,811.72 and 576.03 is: 864.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.55 : 2,811.72 = 576.03 : x
  2. Step 2: Convert to fraction form
    1,874.55/2,811.72 = 576.03/x
  3. Step 3: Cross multiply
    1,874.55x = 2,811.72 × 576.03
  4. Step 4: Simplify right side
    1,874.55x = 1,619,635.07
  5. Step 5: Solve for x
    x = 1,619,635.07/1,874.55
  6. Step 6: Final answer
    x = 864.01

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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.