Home / 3,717.56-5,576.65-1,120.50

Finding the Fourth Proportional to 3,717.56, 5,576.65 and 1,120.50

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Solution

The fourth proportional to 3,717.56, 5,576.65 and 1,120.50 is: 1,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.56 : 5,576.65 = 1,120.50 : x
  2. Step 2: Convert to fraction form
    3,717.56/5,576.65 = 1,120.50/x
  3. Step 3: Cross multiply
    3,717.56x = 5,576.65 × 1,120.50
  4. Step 4: Simplify right side
    3,717.56x = 6,248,633.52
  5. Step 5: Solve for x
    x = 6,248,633.52/3,717.56
  6. Step 6: Final answer
    x = 1,680.84

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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.