Home / 3,174.72-4,750.56-2,621.76

Finding the Fourth Proportional to 3,174.72, 4,750.56 and 2,621.76

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Solution

The fourth proportional to 3,174.72, 4,750.56 and 2,621.76 is: 3,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.72 : 4,750.56 = 2,621.76 : x
  2. Step 2: Convert to fraction form
    3,174.72/4,750.56 = 2,621.76/x
  3. Step 3: Cross multiply
    3,174.72x = 4,750.56 × 2,621.76
  4. Step 4: Simplify right side
    3,174.72x = 12,454,828.19
  5. Step 5: Solve for x
    x = 12,454,828.19/3,174.72
  6. Step 6: Final answer
    x = 3,923.13

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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.